From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.9 commit in: /
Date: Wed, 6 Nov 2019 14:24:40 +0000 (UTC) [thread overview]
Message-ID: <1573050257.7c7ef17e70b463d428045a2aa6cc6a5c83df8c6c.mpagano@gentoo> (raw)
commit: 7c7ef17e70b463d428045a2aa6cc6a5c83df8c6c
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Nov 6 14:24:17 2019 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Nov 6 14:24:17 2019 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=7c7ef17e
Linux patch 4.9.199
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1198_linux-4.9.199.patch | 3016 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 3020 insertions(+)
diff --git a/0000_README b/0000_README
index 56cc1cc..170dda1 100644
--- a/0000_README
+++ b/0000_README
@@ -835,6 +835,10 @@ Patch: 1197_linux-4.9.198.patch
From: http://www.kernel.org
Desc: Linux 4.9.198
+Patch: 1198_linux-4.9.199.patch
+From: http://www.kernel.org
+Desc: Linux 4.9.199
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1198_linux-4.9.199.patch b/1198_linux-4.9.199.patch
new file mode 100644
index 0000000..387dcbc
--- /dev/null
+++ b/1198_linux-4.9.199.patch
@@ -0,0 +1,3016 @@
+diff --git a/Makefile b/Makefile
+index 2f11058a0d06..b7f6639f4e7a 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 198
++SUBLEVEL = 199
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+
+diff --git a/arch/mips/fw/sni/sniprom.c b/arch/mips/fw/sni/sniprom.c
+index 6aa264b9856a..7c6151d412bd 100644
+--- a/arch/mips/fw/sni/sniprom.c
++++ b/arch/mips/fw/sni/sniprom.c
+@@ -42,7 +42,7 @@
+
+ /* O32 stack has to be 8-byte aligned. */
+ static u64 o32_stk[4096];
+-#define O32_STK &o32_stk[sizeof(o32_stk)]
++#define O32_STK (&o32_stk[ARRAY_SIZE(o32_stk)])
+
+ #define __PROM_O32(fun, arg) fun arg __asm__(#fun); \
+ __asm__(#fun " = call_o32")
+diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
+index a7ef70220126..31b2913372b5 100644
+--- a/arch/s390/include/asm/uaccess.h
++++ b/arch/s390/include/asm/uaccess.h
+@@ -151,7 +151,7 @@ unsigned long __must_check __copy_to_user(void __user *to, const void *from,
+ __rc; \
+ })
+
+-static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size)
++static __always_inline int __put_user_fn(void *x, void __user *ptr, unsigned long size)
+ {
+ unsigned long spec = 0x810000UL;
+ int rc;
+@@ -181,7 +181,7 @@ static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size)
+ return rc;
+ }
+
+-static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size)
++static __always_inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size)
+ {
+ unsigned long spec = 0x81UL;
+ int rc;
+diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
+index 79ddd580d605..ca6fab51eea1 100644
+--- a/arch/s390/mm/cmm.c
++++ b/arch/s390/mm/cmm.c
+@@ -306,16 +306,16 @@ static int cmm_timeout_handler(struct ctl_table *ctl, int write,
+ }
+
+ if (write) {
+- len = *lenp;
+- if (copy_from_user(buf, buffer,
+- len > sizeof(buf) ? sizeof(buf) : len))
++ len = min(*lenp, sizeof(buf));
++ if (copy_from_user(buf, buffer, len))
+ return -EFAULT;
+- buf[sizeof(buf) - 1] = '\0';
++ buf[len - 1] = '\0';
+ cmm_skip_blanks(buf, &p);
+ nr = simple_strtoul(p, &p, 0);
+ cmm_skip_blanks(p, &p);
+ seconds = simple_strtoul(p, &p, 0);
+ cmm_set_timeout(nr, seconds);
++ *ppos += *lenp;
+ } else {
+ len = sprintf(buf, "%ld %ld\n",
+ cmm_timeout_pages, cmm_timeout_seconds);
+@@ -323,9 +323,9 @@ static int cmm_timeout_handler(struct ctl_table *ctl, int write,
+ len = *lenp;
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
++ *lenp = len;
++ *ppos += len;
+ }
+- *lenp = len;
+- *ppos += len;
+ return 0;
+ }
+
+diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
+index ba7b6f736414..74ee597beb3e 100644
+--- a/arch/x86/include/asm/intel-family.h
++++ b/arch/x86/include/asm/intel-family.h
+@@ -5,7 +5,7 @@
+ * "Big Core" Processors (Branded as Core, Xeon, etc...)
+ *
+ * The "_X" parts are generally the EP and EX Xeons, or the
+- * "Extreme" ones, like Broadwell-E.
++ * "Extreme" ones, like Broadwell-E, or Atom microserver.
+ *
+ * Things ending in "2" are usually because we have no better
+ * name for them. There's no processor called "SILVERMONT2".
+@@ -67,6 +67,7 @@
+ #define INTEL_FAM6_ATOM_GOLDMONT 0x5C /* Apollo Lake */
+ #define INTEL_FAM6_ATOM_GOLDMONT_X 0x5F /* Denverton */
+ #define INTEL_FAM6_ATOM_GOLDMONT_PLUS 0x7A /* Gemini Lake */
++#define INTEL_FAM6_ATOM_TREMONT_X 0x86 /* Jacobsville */
+
+ /* Xeon Phi */
+
+diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
+index a0e85f2aff7d..b6669d326545 100644
+--- a/arch/x86/platform/efi/efi.c
++++ b/arch/x86/platform/efi/efi.c
+@@ -896,9 +896,6 @@ static void __init kexec_enter_virtual_mode(void)
+
+ if (efi_enabled(EFI_OLD_MEMMAP) && (__supported_pte_mask & _PAGE_NX))
+ runtime_code_page_mkexec();
+-
+- /* clean DUMMY object */
+- efi_delete_dummy_variable();
+ #endif
+ }
+
+diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
+index 2ceb5a26f860..709e1308777a 100644
+--- a/drivers/dma/cppi41.c
++++ b/drivers/dma/cppi41.c
+@@ -586,9 +586,22 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg(
+ enum dma_transfer_direction dir, unsigned long tx_flags, void *context)
+ {
+ struct cppi41_channel *c = to_cpp41_chan(chan);
++ struct dma_async_tx_descriptor *txd = NULL;
++ struct cppi41_dd *cdd = c->cdd;
+ struct cppi41_desc *d;
+ struct scatterlist *sg;
+ unsigned int i;
++ int error;
++
++ error = pm_runtime_get(cdd->ddev.dev);
++ if (error < 0) {
++ pm_runtime_put_noidle(cdd->ddev.dev);
++
++ return NULL;
++ }
++
++ if (cdd->is_suspended)
++ goto err_out_not_ready;
+
+ d = c->desc;
+ for_each_sg(sgl, sg, sg_len, i) {
+@@ -611,7 +624,13 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg(
+ d++;
+ }
+
+- return &c->txd;
++ txd = &c->txd;
++
++err_out_not_ready:
++ pm_runtime_mark_last_busy(cdd->ddev.dev);
++ pm_runtime_put_autosuspend(cdd->ddev.dev);
++
++ return txd;
+ }
+
+ static void cppi41_compute_td_desc(struct cppi41_desc *d)
+diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
+index f40f7df4b734..c0e54396f250 100644
+--- a/drivers/firmware/efi/cper.c
++++ b/drivers/firmware/efi/cper.c
+@@ -375,7 +375,7 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
+ printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx,
+ pcie->device_id.vendor_id, pcie->device_id.device_id);
+ p = pcie->device_id.class_code;
+- printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]);
++ printk("%s""class_code: %02x%02x%02x\n", pfx, p[2], p[1], p[0]);
+ }
+ if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER)
+ printk("%s""serial number: 0x%04x, 0x%04x\n", pfx,
+diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c
+index b46b436cb97f..4fe0be5aa294 100644
+--- a/drivers/gpio/gpio-max77620.c
++++ b/drivers/gpio/gpio-max77620.c
+@@ -167,13 +167,13 @@ static int max77620_gpio_set_debounce(struct gpio_chip *gc,
+ case 0:
+ val = MAX77620_CNFG_GPIO_DBNC_None;
+ break;
+- case 1 ... 8:
++ case 1000 ... 8000:
+ val = MAX77620_CNFG_GPIO_DBNC_8ms;
+ break;
+- case 9 ... 16:
++ case 9000 ... 16000:
+ val = MAX77620_CNFG_GPIO_DBNC_16ms;
+ break;
+- case 17 ... 32:
++ case 17000 ... 32000:
+ val = MAX77620_CNFG_GPIO_DBNC_32ms;
+ break;
+ default:
+diff --git a/drivers/hid/hid-axff.c b/drivers/hid/hid-axff.c
+index a594e478a1e2..843aed4dec80 100644
+--- a/drivers/hid/hid-axff.c
++++ b/drivers/hid/hid-axff.c
+@@ -75,13 +75,20 @@ static int axff_init(struct hid_device *hid)
+ {
+ struct axff_device *axff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
++ struct hid_input *hidinput;
+ struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list;
+- struct input_dev *dev = hidinput->input;
++ struct input_dev *dev;
+ int field_count = 0;
+ int i, j;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
+index ceb4df96e0d5..9aeab4ff2d81 100644
+--- a/drivers/hid/hid-core.c
++++ b/drivers/hid/hid-core.c
+@@ -959,6 +959,7 @@ int hid_open_report(struct hid_device *device)
+ __u8 *start;
+ __u8 *buf;
+ __u8 *end;
++ __u8 *next;
+ int ret;
+ static int (*dispatch_type[])(struct hid_parser *parser,
+ struct hid_item *item) = {
+@@ -1012,7 +1013,8 @@ int hid_open_report(struct hid_device *device)
+ device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
+
+ ret = -EINVAL;
+- while ((start = fetch_item(start, end, &item)) != NULL) {
++ while ((next = fetch_item(start, end, &item)) != NULL) {
++ start = next;
+
+ if (item.format != HID_ITEM_FORMAT_SHORT) {
+ hid_err(device, "unexpected long global item\n");
+@@ -1041,7 +1043,8 @@ int hid_open_report(struct hid_device *device)
+ }
+ }
+
+- hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
++ hid_err(device, "item fetching failed at offset %u/%u\n",
++ size - (unsigned int)(end - start), size);
+ err:
+ vfree(parser);
+ hid_close_report(device);
+diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
+index 818ea7d93533..309969b8dc2e 100644
+--- a/drivers/hid/hid-dr.c
++++ b/drivers/hid/hid-dr.c
+@@ -87,13 +87,19 @@ static int drff_init(struct hid_device *hid)
+ {
+ struct drff_device *drff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_first_entry(&hid->inputs,
+- struct hid_input, list);
++ struct hid_input *hidinput;
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+- struct input_dev *dev = hidinput->input;
++ struct input_dev *dev;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+diff --git a/drivers/hid/hid-emsff.c b/drivers/hid/hid-emsff.c
+index d82d75bb11f7..80f9a02dfa69 100644
+--- a/drivers/hid/hid-emsff.c
++++ b/drivers/hid/hid-emsff.c
+@@ -59,13 +59,19 @@ static int emsff_init(struct hid_device *hid)
+ {
+ struct emsff_device *emsff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_first_entry(&hid->inputs,
+- struct hid_input, list);
++ struct hid_input *hidinput;
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+- struct input_dev *dev = hidinput->input;
++ struct input_dev *dev;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c
+index 2d8cead3adca..5a02c50443cb 100644
+--- a/drivers/hid/hid-gaff.c
++++ b/drivers/hid/hid-gaff.c
+@@ -77,14 +77,20 @@ static int gaff_init(struct hid_device *hid)
+ {
+ struct gaff_device *gaff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_entry(hid->inputs.next,
+- struct hid_input, list);
++ struct hid_input *hidinput;
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct list_head *report_ptr = report_list;
+- struct input_dev *dev = hidinput->input;
++ struct input_dev *dev;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+diff --git a/drivers/hid/hid-holtekff.c b/drivers/hid/hid-holtekff.c
+index 9325545fc3ae..3e84551cca9c 100644
+--- a/drivers/hid/hid-holtekff.c
++++ b/drivers/hid/hid-holtekff.c
+@@ -140,13 +140,19 @@ static int holtekff_init(struct hid_device *hid)
+ {
+ struct holtekff_device *holtekff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_entry(hid->inputs.next,
+- struct hid_input, list);
++ struct hid_input *hidinput;
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+- struct input_dev *dev = hidinput->input;
++ struct input_dev *dev;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output report found\n");
+ return -ENODEV;
+diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c
+index 0e3fb1a7e421..6909d9c2fc67 100644
+--- a/drivers/hid/hid-lg2ff.c
++++ b/drivers/hid/hid-lg2ff.c
+@@ -62,11 +62,17 @@ int lg2ff_init(struct hid_device *hid)
+ {
+ struct lg2ff_device *lg2ff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_entry(hid->inputs.next,
+- struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ int error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ /* Check that the report looks ok */
+ report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
+ if (!report)
+diff --git a/drivers/hid/hid-lg3ff.c b/drivers/hid/hid-lg3ff.c
+index 8c2da183d3bc..acf739fc4060 100644
+--- a/drivers/hid/hid-lg3ff.c
++++ b/drivers/hid/hid-lg3ff.c
+@@ -129,12 +129,19 @@ static const signed short ff3_joystick_ac[] = {
+
+ int lg3ff_init(struct hid_device *hid)
+ {
+- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ const signed short *ff_bits = ff3_joystick_ac;
+ int error;
+ int i;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ /* Check that the report looks ok */
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 35))
+ return -ENODEV;
+diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
+index 127f1335a1da..1b109a5cf922 100644
+--- a/drivers/hid/hid-lg4ff.c
++++ b/drivers/hid/hid-lg4ff.c
+@@ -1261,8 +1261,8 @@ static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_produc
+
+ int lg4ff_init(struct hid_device *hid)
+ {
+- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
+@@ -1274,6 +1274,13 @@ int lg4ff_init(struct hid_device *hid)
+ int mmode_ret, mmode_idx = -1;
+ u16 real_product_id;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ /* Check that the report looks ok */
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
+ return -1;
+diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c
+index e1394af0ae7b..1871cdcd1e0a 100644
+--- a/drivers/hid/hid-lgff.c
++++ b/drivers/hid/hid-lgff.c
+@@ -127,12 +127,19 @@ static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
+
+ int lgff_init(struct hid_device* hid)
+ {
+- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ const signed short *ff_bits = ff_joystick;
+ int error;
+ int i;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ /* Check that the report looks ok */
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
+ return -ENODEV;
+diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
+index 38d9deb03d16..434438334fb1 100644
+--- a/drivers/hid/hid-logitech-hidpp.c
++++ b/drivers/hid/hid-logitech-hidpp.c
+@@ -1238,8 +1238,8 @@ static void hidpp_ff_destroy(struct ff_device *ff)
+ static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index)
+ {
+ struct hid_device *hid = hidpp->hid_dev;
+- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
+ const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
+ struct ff_device *ff;
+@@ -1248,6 +1248,13 @@ static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index)
+ int error, j, num_slots;
+ u8 version;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ if (!dev) {
+ hid_err(hid, "Struct input_dev not set!\n");
+ return -EINVAL;
+diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
+index eee58d15e745..9633d7a7ac2e 100644
+--- a/drivers/hid/hid-sony.c
++++ b/drivers/hid/hid-sony.c
+@@ -2008,9 +2008,15 @@ static int sony_play_effect(struct input_dev *dev, void *data,
+
+ static int sony_init_ff(struct sony_sc *sc)
+ {
+- struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
+- struct hid_input, list);
+- struct input_dev *input_dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *input_dev;
++
++ if (list_empty(&sc->hdev->inputs)) {
++ hid_err(sc->hdev, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(sc->hdev->inputs.next, struct hid_input, list);
++ input_dev = hidinput->input;
+
+ input_set_capability(input_dev, EV_FF, FF_RUMBLE);
+ return input_ff_create_memless(input_dev, NULL, sony_play_effect);
+diff --git a/drivers/hid/hid-tmff.c b/drivers/hid/hid-tmff.c
+index cfa0cb22c9b3..d98e471a5f7b 100644
+--- a/drivers/hid/hid-tmff.c
++++ b/drivers/hid/hid-tmff.c
+@@ -136,12 +136,18 @@ static int tmff_init(struct hid_device *hid, const signed short *ff_bits)
+ struct tmff_device *tmff;
+ struct hid_report *report;
+ struct list_head *report_list;
+- struct hid_input *hidinput = list_entry(hid->inputs.next,
+- struct hid_input, list);
+- struct input_dev *input_dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *input_dev;
+ int error;
+ int i;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ input_dev = hidinput->input;
++
+ tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
+ if (!tmff)
+ return -ENOMEM;
+diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c
+index a29756c6ca02..4e7e01be99b1 100644
+--- a/drivers/hid/hid-zpff.c
++++ b/drivers/hid/hid-zpff.c
+@@ -66,11 +66,17 @@ static int zpff_init(struct hid_device *hid)
+ {
+ struct zpff_device *zpff;
+ struct hid_report *report;
+- struct hid_input *hidinput = list_entry(hid->inputs.next,
+- struct hid_input, list);
+- struct input_dev *dev = hidinput->input;
++ struct hid_input *hidinput;
++ struct input_dev *dev;
+ int i, error;
+
++ if (list_empty(&hid->inputs)) {
++ hid_err(hid, "no inputs found\n");
++ return -ENODEV;
++ }
++ hidinput = list_entry(hid->inputs.next, struct hid_input, list);
++ dev = hidinput->input;
++
+ for (i = 0; i < 4; i++) {
+ report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1);
+ if (!report)
+diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+index cac262a912c1..10af8585c820 100644
+--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
++++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+@@ -322,6 +322,25 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
+ },
+ .driver_data = (void *)&sipodev_desc
+ },
++ {
++ /*
++ * There are at least 2 Primebook C11B versions, the older
++ * version has a product-name of "Primebook C11B", and a
++ * bios version / release / firmware revision of:
++ * V2.1.2 / 05/03/2018 / 18.2
++ * The new version has "PRIMEBOOK C11B" as product-name and a
++ * bios version / release / firmware revision of:
++ * CFALKSW05_BIOS_V1.1.2 / 11/19/2018 / 19.2
++ * Only the older version needs this quirk, note the newer
++ * version will not match as it has a different product-name.
++ */
++ .ident = "Trekstor Primebook C11B",
++ .matches = {
++ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
++ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C11B"),
++ },
++ .driver_data = (void *)&sipodev_desc
++ },
+ {
+ .ident = "Direkt-Tek DTLAPY116-2",
+ .matches = {
+@@ -330,6 +349,14 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
+ },
+ .driver_data = (void *)&sipodev_desc
+ },
++ {
++ .ident = "Direkt-Tek DTLAPY133-1",
++ .matches = {
++ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"),
++ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "DTLAPY133-1"),
++ },
++ .driver_data = (void *)&sipodev_desc
++ },
+ {
+ .ident = "Mediacom Flexbook Edge 11",
+ .matches = {
+@@ -338,6 +365,14 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
+ },
+ .driver_data = (void *)&sipodev_desc
+ },
++ {
++ .ident = "Odys Winbook 13",
++ .matches = {
++ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AXDIA International GmbH"),
++ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "WINBOOK 13"),
++ },
++ .driver_data = (void *)&sipodev_desc
++ },
+ { } /* Terminate list */
+ };
+
+diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
+index c3888822add1..b6254ce9ab3b 100644
+--- a/drivers/iio/accel/bmc150-accel-core.c
++++ b/drivers/iio/accel/bmc150-accel-core.c
+@@ -125,7 +125,7 @@
+ #define BMC150_ACCEL_SLEEP_1_SEC 0x0F
+
+ #define BMC150_ACCEL_REG_TEMP 0x08
+-#define BMC150_ACCEL_TEMP_CENTER_VAL 24
++#define BMC150_ACCEL_TEMP_CENTER_VAL 23
+
+ #define BMC150_ACCEL_AXIS_TO_REG(axis) (BMC150_ACCEL_REG_XOUT_L + (axis * 2))
+ #define BMC150_AUTO_SUSPEND_DELAY_MS 2000
+diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
+index 85d4ef319c90..dcfbf326f45c 100644
+--- a/drivers/infiniband/core/cma.c
++++ b/drivers/infiniband/core/cma.c
+@@ -2119,9 +2119,10 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
+ conn_id->cm_id.iw = NULL;
+ cma_exch(conn_id, RDMA_CM_DESTROYING);
+ mutex_unlock(&conn_id->handler_mutex);
++ mutex_unlock(&listen_id->handler_mutex);
+ cma_deref_id(conn_id);
+ rdma_destroy_id(&conn_id->id);
+- goto out;
++ return ret;
+ }
+
+ mutex_unlock(&conn_id->handler_mutex);
+diff --git a/drivers/md/dm-bio-prison.c b/drivers/md/dm-bio-prison.c
+index 03af174485d3..fa2432a89bac 100644
+--- a/drivers/md/dm-bio-prison.c
++++ b/drivers/md/dm-bio-prison.c
+@@ -32,7 +32,7 @@ static struct kmem_cache *_cell_cache;
+ */
+ struct dm_bio_prison *dm_bio_prison_create(void)
+ {
+- struct dm_bio_prison *prison = kmalloc(sizeof(*prison), GFP_KERNEL);
++ struct dm_bio_prison *prison = kzalloc(sizeof(*prison), GFP_KERNEL);
+
+ if (!prison)
+ return NULL;
+diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
+index ee6045d6c0bb..201d90f5d1b3 100644
+--- a/drivers/md/dm-io.c
++++ b/drivers/md/dm-io.c
+@@ -50,7 +50,7 @@ struct dm_io_client *dm_io_client_create(void)
+ struct dm_io_client *client;
+ unsigned min_ios = dm_get_reserved_bio_based_ios();
+
+- client = kmalloc(sizeof(*client), GFP_KERNEL);
++ client = kzalloc(sizeof(*client), GFP_KERNEL);
+ if (!client)
+ return ERR_PTR(-ENOMEM);
+
+diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
+index e0cfde3501e0..4609c5b481e2 100644
+--- a/drivers/md/dm-kcopyd.c
++++ b/drivers/md/dm-kcopyd.c
+@@ -828,7 +828,7 @@ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *thro
+ int r = -ENOMEM;
+ struct dm_kcopyd_client *kc;
+
+- kc = kmalloc(sizeof(*kc), GFP_KERNEL);
++ kc = kzalloc(sizeof(*kc), GFP_KERNEL);
+ if (!kc)
+ return ERR_PTR(-ENOMEM);
+
+diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
+index 85c32b22a420..91c6f6d72eee 100644
+--- a/drivers/md/dm-region-hash.c
++++ b/drivers/md/dm-region-hash.c
+@@ -179,7 +179,7 @@ struct dm_region_hash *dm_region_hash_create(
+ ;
+ nr_buckets >>= 1;
+
+- rh = kmalloc(sizeof(*rh), GFP_KERNEL);
++ rh = kzalloc(sizeof(*rh), GFP_KERNEL);
+ if (!rh) {
+ DMERR("unable to allocate region hash memory");
+ return ERR_PTR(-ENOMEM);
+diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
+index 2da0b9b213c7..c04d9f22d160 100644
+--- a/drivers/md/dm-snap.c
++++ b/drivers/md/dm-snap.c
+@@ -19,7 +19,6 @@
+ #include <linux/vmalloc.h>
+ #include <linux/log2.h>
+ #include <linux/dm-kcopyd.h>
+-#include <linux/semaphore.h>
+
+ #include "dm.h"
+
+@@ -48,7 +47,7 @@ struct dm_exception_table {
+ };
+
+ struct dm_snapshot {
+- struct rw_semaphore lock;
++ struct mutex lock;
+
+ struct dm_dev *origin;
+ struct dm_dev *cow;
+@@ -106,8 +105,8 @@ struct dm_snapshot {
+ /* The on disk metadata handler */
+ struct dm_exception_store *store;
+
+- /* Maximum number of in-flight COW jobs. */
+- struct semaphore cow_count;
++ unsigned in_progress;
++ wait_queue_head_t in_progress_wait;
+
+ struct dm_kcopyd_client *kcopyd_client;
+
+@@ -158,8 +157,8 @@ struct dm_snapshot {
+ */
+ #define DEFAULT_COW_THRESHOLD 2048
+
+-static int cow_threshold = DEFAULT_COW_THRESHOLD;
+-module_param_named(snapshot_cow_threshold, cow_threshold, int, 0644);
++static unsigned cow_threshold = DEFAULT_COW_THRESHOLD;
++module_param_named(snapshot_cow_threshold, cow_threshold, uint, 0644);
+ MODULE_PARM_DESC(snapshot_cow_threshold, "Maximum number of chunks being copied on write");
+
+ DECLARE_DM_KCOPYD_THROTTLE_WITH_MODULE_PARM(snapshot_copy_throttle,
+@@ -456,9 +455,9 @@ static int __find_snapshots_sharing_cow(struct dm_snapshot *snap,
+ if (!bdev_equal(s->cow->bdev, snap->cow->bdev))
+ continue;
+
+- down_read(&s->lock);
++ mutex_lock(&s->lock);
+ active = s->active;
+- up_read(&s->lock);
++ mutex_unlock(&s->lock);
+
+ if (active) {
+ if (snap_src)
+@@ -926,7 +925,7 @@ static int remove_single_exception_chunk(struct dm_snapshot *s)
+ int r;
+ chunk_t old_chunk = s->first_merging_chunk + s->num_merging_chunks - 1;
+
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+
+ /*
+ * Process chunks (and associated exceptions) in reverse order
+@@ -941,7 +940,7 @@ static int remove_single_exception_chunk(struct dm_snapshot *s)
+ b = __release_queued_bios_after_merge(s);
+
+ out:
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ if (b)
+ flush_bios(b);
+
+@@ -1000,9 +999,9 @@ static void snapshot_merge_next_chunks(struct dm_snapshot *s)
+ if (linear_chunks < 0) {
+ DMERR("Read error in exception store: "
+ "shutting down merge");
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ s->merge_failed = 1;
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ }
+ goto shut;
+ }
+@@ -1043,10 +1042,10 @@ static void snapshot_merge_next_chunks(struct dm_snapshot *s)
+ previous_count = read_pending_exceptions_done_count();
+ }
+
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ s->first_merging_chunk = old_chunk;
+ s->num_merging_chunks = linear_chunks;
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+
+ /* Wait until writes to all 'linear_chunks' drain */
+ for (i = 0; i < linear_chunks; i++)
+@@ -1088,10 +1087,10 @@ static void merge_callback(int read_err, unsigned long write_err, void *context)
+ return;
+
+ shut:
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ s->merge_failed = 1;
+ b = __release_queued_bios_after_merge(s);
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ error_bios(b);
+
+ merge_shutdown(s);
+@@ -1137,7 +1136,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ origin_mode = FMODE_WRITE;
+ }
+
+- s = kmalloc(sizeof(*s), GFP_KERNEL);
++ s = kzalloc(sizeof(*s), GFP_KERNEL);
+ if (!s) {
+ ti->error = "Cannot allocate private snapshot structure";
+ r = -ENOMEM;
+@@ -1190,7 +1189,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ s->exception_start_sequence = 0;
+ s->exception_complete_sequence = 0;
+ INIT_LIST_HEAD(&s->out_of_order_list);
+- init_rwsem(&s->lock);
++ mutex_init(&s->lock);
+ INIT_LIST_HEAD(&s->list);
+ spin_lock_init(&s->pe_lock);
+ s->state_bits = 0;
+@@ -1206,7 +1205,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ goto bad_hash_tables;
+ }
+
+- sema_init(&s->cow_count, (cow_threshold > 0) ? cow_threshold : INT_MAX);
++ init_waitqueue_head(&s->in_progress_wait);
+
+ s->kcopyd_client = dm_kcopyd_client_create(&dm_kcopyd_throttle);
+ if (IS_ERR(s->kcopyd_client)) {
+@@ -1357,9 +1356,9 @@ static void snapshot_dtr(struct dm_target *ti)
+ /* Check whether exception handover must be cancelled */
+ (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
+ if (snap_src && snap_dest && (s == snap_src)) {
+- down_write(&snap_dest->lock);
++ mutex_lock(&snap_dest->lock);
+ snap_dest->valid = 0;
+- up_write(&snap_dest->lock);
++ mutex_unlock(&snap_dest->lock);
+ DMERR("Cancelling snapshot handover.");
+ }
+ up_read(&_origins_lock);
+@@ -1390,13 +1389,62 @@ static void snapshot_dtr(struct dm_target *ti)
+
+ dm_exception_store_destroy(s->store);
+
++ mutex_destroy(&s->lock);
++
+ dm_put_device(ti, s->cow);
+
+ dm_put_device(ti, s->origin);
+
++ WARN_ON(s->in_progress);
++
+ kfree(s);
+ }
+
++static void account_start_copy(struct dm_snapshot *s)
++{
++ spin_lock(&s->in_progress_wait.lock);
++ s->in_progress++;
++ spin_unlock(&s->in_progress_wait.lock);
++}
++
++static void account_end_copy(struct dm_snapshot *s)
++{
++ spin_lock(&s->in_progress_wait.lock);
++ BUG_ON(!s->in_progress);
++ s->in_progress--;
++ if (likely(s->in_progress <= cow_threshold) &&
++ unlikely(waitqueue_active(&s->in_progress_wait)))
++ wake_up_locked(&s->in_progress_wait);
++ spin_unlock(&s->in_progress_wait.lock);
++}
++
++static bool wait_for_in_progress(struct dm_snapshot *s, bool unlock_origins)
++{
++ if (unlikely(s->in_progress > cow_threshold)) {
++ spin_lock(&s->in_progress_wait.lock);
++ if (likely(s->in_progress > cow_threshold)) {
++ /*
++ * NOTE: this throttle doesn't account for whether
++ * the caller is servicing an IO that will trigger a COW
++ * so excess throttling may result for chunks not required
++ * to be COW'd. But if cow_threshold was reached, extra
++ * throttling is unlikely to negatively impact performance.
++ */
++ DECLARE_WAITQUEUE(wait, current);
++ __add_wait_queue(&s->in_progress_wait, &wait);
++ __set_current_state(TASK_UNINTERRUPTIBLE);
++ spin_unlock(&s->in_progress_wait.lock);
++ if (unlock_origins)
++ up_read(&_origins_lock);
++ io_schedule();
++ remove_wait_queue(&s->in_progress_wait, &wait);
++ return false;
++ }
++ spin_unlock(&s->in_progress_wait.lock);
++ }
++ return true;
++}
++
+ /*
+ * Flush a list of buffers.
+ */
+@@ -1412,7 +1460,7 @@ static void flush_bios(struct bio *bio)
+ }
+ }
+
+-static int do_origin(struct dm_dev *origin, struct bio *bio);
++static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit);
+
+ /*
+ * Flush a list of buffers.
+@@ -1425,7 +1473,7 @@ static void retry_origin_bios(struct dm_snapshot *s, struct bio *bio)
+ while (bio) {
+ n = bio->bi_next;
+ bio->bi_next = NULL;
+- r = do_origin(s->origin, bio);
++ r = do_origin(s->origin, bio, false);
+ if (r == DM_MAPIO_REMAPPED)
+ generic_make_request(bio);
+ bio = n;
+@@ -1477,7 +1525,7 @@ static void pending_complete(void *context, int success)
+
+ if (!success) {
+ /* Read/write error - snapshot is unusable */
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ __invalidate_snapshot(s, -EIO);
+ error = 1;
+ goto out;
+@@ -1485,14 +1533,14 @@ static void pending_complete(void *context, int success)
+
+ e = alloc_completed_exception(GFP_NOIO);
+ if (!e) {
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ __invalidate_snapshot(s, -ENOMEM);
+ error = 1;
+ goto out;
+ }
+ *e = pe->e;
+
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ if (!s->valid) {
+ free_completed_exception(e);
+ error = 1;
+@@ -1517,7 +1565,7 @@ out:
+ full_bio->bi_end_io = pe->full_bio_end_io;
+ increment_pending_exceptions_done_count();
+
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+
+ /* Submit any pending write bios */
+ if (error) {
+@@ -1579,7 +1627,7 @@ static void copy_callback(int read_err, unsigned long write_err, void *context)
+ }
+ list_add(&pe->out_of_order_entry, lh);
+ }
+- up(&s->cow_count);
++ account_end_copy(s);
+ }
+
+ /*
+@@ -1603,7 +1651,7 @@ static void start_copy(struct dm_snap_pending_exception *pe)
+ dest.count = src.count;
+
+ /* Hand over to kcopyd */
+- down(&s->cow_count);
++ account_start_copy(s);
+ dm_kcopyd_copy(s->kcopyd_client, &src, 1, &dest, 0, copy_callback, pe);
+ }
+
+@@ -1623,7 +1671,7 @@ static void start_full_bio(struct dm_snap_pending_exception *pe,
+ pe->full_bio = bio;
+ pe->full_bio_end_io = bio->bi_end_io;
+
+- down(&s->cow_count);
++ account_start_copy(s);
+ callback_data = dm_kcopyd_prepare_callback(s->kcopyd_client,
+ copy_callback, pe);
+
+@@ -1714,9 +1762,12 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
+ if (!s->valid)
+ return -EIO;
+
+- /* FIXME: should only take write lock if we need
+- * to copy an exception */
+- down_write(&s->lock);
++ if (bio_data_dir(bio) == WRITE) {
++ while (unlikely(!wait_for_in_progress(s, false)))
++ ; /* wait_for_in_progress() has slept */
++ }
++
++ mutex_lock(&s->lock);
+
+ if (!s->valid || (unlikely(s->snapshot_overflowed) &&
+ bio_data_dir(bio) == WRITE)) {
+@@ -1739,9 +1790,9 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
+ if (bio_data_dir(bio) == WRITE) {
+ pe = __lookup_pending_exception(s, chunk);
+ if (!pe) {
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ pe = alloc_pending_exception(s);
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+
+ if (!s->valid || s->snapshot_overflowed) {
+ free_pending_exception(pe);
+@@ -1776,7 +1827,7 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
+ bio->bi_iter.bi_size ==
+ (s->store->chunk_size << SECTOR_SHIFT)) {
+ pe->started = 1;
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ start_full_bio(pe, bio);
+ goto out;
+ }
+@@ -1786,7 +1837,7 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
+ if (!pe->started) {
+ /* this is protected by snap->lock */
+ pe->started = 1;
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ start_copy(pe);
+ goto out;
+ }
+@@ -1796,7 +1847,7 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
+ }
+
+ out_unlock:
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ out:
+ return r;
+ }
+@@ -1832,7 +1883,7 @@ static int snapshot_merge_map(struct dm_target *ti, struct bio *bio)
+
+ chunk = sector_to_chunk(s->store, bio->bi_iter.bi_sector);
+
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+
+ /* Full merging snapshots are redirected to the origin */
+ if (!s->valid)
+@@ -1863,12 +1914,12 @@ redirect_to_origin:
+ bio->bi_bdev = s->origin->bdev;
+
+ if (bio_data_dir(bio) == WRITE) {
+- up_write(&s->lock);
+- return do_origin(s->origin, bio);
++ mutex_unlock(&s->lock);
++ return do_origin(s->origin, bio, false);
+ }
+
+ out_unlock:
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+
+ return r;
+ }
+@@ -1899,7 +1950,7 @@ static int snapshot_preresume(struct dm_target *ti)
+ down_read(&_origins_lock);
+ (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
+ if (snap_src && snap_dest) {
+- down_read(&snap_src->lock);
++ mutex_lock(&snap_src->lock);
+ if (s == snap_src) {
+ DMERR("Unable to resume snapshot source until "
+ "handover completes.");
+@@ -1909,7 +1960,7 @@ static int snapshot_preresume(struct dm_target *ti)
+ "source is suspended.");
+ r = -EINVAL;
+ }
+- up_read(&snap_src->lock);
++ mutex_unlock(&snap_src->lock);
+ }
+ up_read(&_origins_lock);
+
+@@ -1955,11 +2006,11 @@ static void snapshot_resume(struct dm_target *ti)
+
+ (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
+ if (snap_src && snap_dest) {
+- down_write(&snap_src->lock);
+- down_write_nested(&snap_dest->lock, SINGLE_DEPTH_NESTING);
++ mutex_lock(&snap_src->lock);
++ mutex_lock_nested(&snap_dest->lock, SINGLE_DEPTH_NESTING);
+ __handover_exceptions(snap_src, snap_dest);
+- up_write(&snap_dest->lock);
+- up_write(&snap_src->lock);
++ mutex_unlock(&snap_dest->lock);
++ mutex_unlock(&snap_src->lock);
+ }
+
+ up_read(&_origins_lock);
+@@ -1974,9 +2025,9 @@ static void snapshot_resume(struct dm_target *ti)
+ /* Now we have correct chunk size, reregister */
+ reregister_snapshot(s);
+
+- down_write(&s->lock);
++ mutex_lock(&s->lock);
+ s->active = 1;
+- up_write(&s->lock);
++ mutex_unlock(&s->lock);
+ }
+
+ static uint32_t get_origin_minimum_chunksize(struct block_device *bdev)
+@@ -2016,7 +2067,7 @@ static void snapshot_status(struct dm_target *ti, status_type_t type,
+ switch (type) {
+ case STATUSTYPE_INFO:
+
+- down_write(&snap->lock);
++ mutex_lock(&snap->lock);
+
+ if (!snap->valid)
+ DMEMIT("Invalid");
+@@ -2041,7 +2092,7 @@ static void snapshot_status(struct dm_target *ti, status_type_t type,
+ DMEMIT("Unknown");
+ }
+
+- up_write(&snap->lock);
++ mutex_unlock(&snap->lock);
+
+ break;
+
+@@ -2107,7 +2158,7 @@ static int __origin_write(struct list_head *snapshots, sector_t sector,
+ if (dm_target_is_snapshot_merge(snap->ti))
+ continue;
+
+- down_write(&snap->lock);
++ mutex_lock(&snap->lock);
+
+ /* Only deal with valid and active snapshots */
+ if (!snap->valid || !snap->active)
+@@ -2134,9 +2185,9 @@ static int __origin_write(struct list_head *snapshots, sector_t sector,
+
+ pe = __lookup_pending_exception(snap, chunk);
+ if (!pe) {
+- up_write(&snap->lock);
++ mutex_unlock(&snap->lock);
+ pe = alloc_pending_exception(snap);
+- down_write(&snap->lock);
++ mutex_lock(&snap->lock);
+
+ if (!snap->valid) {
+ free_pending_exception(pe);
+@@ -2179,7 +2230,7 @@ static int __origin_write(struct list_head *snapshots, sector_t sector,
+ }
+
+ next_snapshot:
+- up_write(&snap->lock);
++ mutex_unlock(&snap->lock);
+
+ if (pe_to_start_now) {
+ start_copy(pe_to_start_now);
+@@ -2200,15 +2251,24 @@ next_snapshot:
+ /*
+ * Called on a write from the origin driver.
+ */
+-static int do_origin(struct dm_dev *origin, struct bio *bio)
++static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit)
+ {
+ struct origin *o;
+ int r = DM_MAPIO_REMAPPED;
+
++again:
+ down_read(&_origins_lock);
+ o = __lookup_origin(origin->bdev);
+- if (o)
++ if (o) {
++ if (limit) {
++ struct dm_snapshot *s;
++ list_for_each_entry(s, &o->snapshots, list)
++ if (unlikely(!wait_for_in_progress(s, true)))
++ goto again;
++ }
++
+ r = __origin_write(&o->snapshots, bio->bi_iter.bi_sector, bio);
++ }
+ up_read(&_origins_lock);
+
+ return r;
+@@ -2321,7 +2381,7 @@ static int origin_map(struct dm_target *ti, struct bio *bio)
+ dm_accept_partial_bio(bio, available_sectors);
+
+ /* Only tell snapshots if this is a write */
+- return do_origin(o->dev, bio);
++ return do_origin(o->dev, bio, true);
+ }
+
+ static long origin_direct_access(struct dm_target *ti, sector_t sector,
+diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
+index 23a7e108352a..dcb753dbf86e 100644
+--- a/drivers/md/dm-thin.c
++++ b/drivers/md/dm-thin.c
+@@ -2965,7 +2965,7 @@ static struct pool *pool_create(struct mapped_device *pool_md,
+ return (struct pool *)pmd;
+ }
+
+- pool = kmalloc(sizeof(*pool), GFP_KERNEL);
++ pool = kzalloc(sizeof(*pool), GFP_KERNEL);
+ if (!pool) {
+ *error = "Error allocating memory for pool";
+ err_p = ERR_PTR(-ENOMEM);
+diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
+index 8820fb1aec5b..c1971bca62fb 100644
+--- a/drivers/net/bonding/bond_main.c
++++ b/drivers/net/bonding/bond_main.c
+@@ -3963,7 +3963,7 @@ out:
+ * this to-be-skipped slave to send a packet out.
+ */
+ old_arr = rtnl_dereference(bond->slave_arr);
+- for (idx = 0; idx < old_arr->count; idx++) {
++ for (idx = 0; old_arr != NULL && idx < old_arr->count; idx++) {
+ if (skipslave == old_arr->arr[idx]) {
+ old_arr->arr[idx] =
+ old_arr->arr[old_arr->count-1];
+diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
+index 004c955c1fd1..da0ae16f5c74 100644
+--- a/drivers/net/usb/sr9800.c
++++ b/drivers/net/usb/sr9800.c
+@@ -336,7 +336,7 @@ static void sr_set_multicast(struct net_device *net)
+ static int sr_mdio_read(struct net_device *net, int phy_id, int loc)
+ {
+ struct usbnet *dev = netdev_priv(net);
+- __le16 res;
++ __le16 res = 0;
+
+ mutex_lock(&dev->phy_mutex);
+ sr_set_sw_mii(dev);
+diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
+index 9da3594fd010..fc22c5f47927 100644
+--- a/drivers/net/wireless/ath/ath6kl/usb.c
++++ b/drivers/net/wireless/ath/ath6kl/usb.c
+@@ -132,6 +132,10 @@ ath6kl_usb_alloc_urb_from_pipe(struct ath6kl_usb_pipe *pipe)
+ struct ath6kl_urb_context *urb_context = NULL;
+ unsigned long flags;
+
++ /* bail if this pipe is not initialized */
++ if (!pipe->ar_usb)
++ return NULL;
++
+ spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags);
+ if (!list_empty(&pipe->urb_list_head)) {
+ urb_context =
+@@ -150,6 +154,10 @@ static void ath6kl_usb_free_urb_to_pipe(struct ath6kl_usb_pipe *pipe,
+ {
+ unsigned long flags;
+
++ /* bail if this pipe is not initialized */
++ if (!pipe->ar_usb)
++ return;
++
+ spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags);
+ pipe->urb_cnt++;
+
+diff --git a/drivers/net/wireless/realtek/rtlwifi/ps.c b/drivers/net/wireless/realtek/rtlwifi/ps.c
+index d0ffc4d508cf..e8963dd2977c 100644
+--- a/drivers/net/wireless/realtek/rtlwifi/ps.c
++++ b/drivers/net/wireless/realtek/rtlwifi/ps.c
+@@ -770,6 +770,9 @@ static void rtl_p2p_noa_ie(struct ieee80211_hw *hw, void *data,
+ return;
+ } else {
+ noa_num = (noa_len - 2) / 13;
++ if (noa_num > P2P_MAX_NOA_NUM)
++ noa_num = P2P_MAX_NOA_NUM;
++
+ }
+ noa_index = ie[3];
+ if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
+@@ -864,6 +867,9 @@ static void rtl_p2p_action_ie(struct ieee80211_hw *hw, void *data,
+ return;
+ } else {
+ noa_num = (noa_len - 2) / 13;
++ if (noa_num > P2P_MAX_NOA_NUM)
++ noa_num = P2P_MAX_NOA_NUM;
++
+ }
+ noa_index = ie[3];
+ if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
+diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
+index 3c8c6f942e67..a06792966ea9 100644
+--- a/drivers/rtc/rtc-pcf8523.c
++++ b/drivers/rtc/rtc-pcf8523.c
+@@ -94,8 +94,9 @@ static int pcf8523_voltage_low(struct i2c_client *client)
+ return !!(value & REG_CONTROL3_BLF);
+ }
+
+-static int pcf8523_select_capacitance(struct i2c_client *client, bool high)
++static int pcf8523_load_capacitance(struct i2c_client *client)
+ {
++ u32 load;
+ u8 value;
+ int err;
+
+@@ -103,14 +104,24 @@ static int pcf8523_select_capacitance(struct i2c_client *client, bool high)
+ if (err < 0)
+ return err;
+
+- if (!high)
+- value &= ~REG_CONTROL1_CAP_SEL;
+- else
++ load = 12500;
++ of_property_read_u32(client->dev.of_node, "quartz-load-femtofarads",
++ &load);
++
++ switch (load) {
++ default:
++ dev_warn(&client->dev, "Unknown quartz-load-femtofarads value: %d. Assuming 12500",
++ load);
++ /* fall through */
++ case 12500:
+ value |= REG_CONTROL1_CAP_SEL;
++ break;
++ case 7000:
++ value &= ~REG_CONTROL1_CAP_SEL;
++ break;
++ }
+
+ err = pcf8523_write(client, REG_CONTROL1, value);
+- if (err < 0)
+- return err;
+
+ return err;
+ }
+@@ -307,9 +318,10 @@ static int pcf8523_probe(struct i2c_client *client,
+ if (!pcf)
+ return -ENOMEM;
+
+- err = pcf8523_select_capacitance(client, true);
++ err = pcf8523_load_capacitance(client);
+ if (err < 0)
+- return err;
++ dev_warn(&client->dev, "failed to set xtal load capacitance: %d",
++ err);
+
+ err = pcf8523_set_pm(client, 0);
+ if (err < 0)
+diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+index d22360849b88..d4a7d740fc62 100644
+--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
++++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+@@ -366,8 +366,10 @@ static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
+ }
+
+ padapter->HalData = kzalloc(sizeof(struct hal_data_8188e), GFP_KERNEL);
+- if (!padapter->HalData)
+- DBG_88E("cant not alloc memory for HAL DATA\n");
++ if (!padapter->HalData) {
++ DBG_88E("Failed to allocate memory for HAL data\n");
++ goto free_adapter;
++ }
+
+ padapter->intf_start = &usb_intf_start;
+ padapter->intf_stop = &usb_intf_stop;
+diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
+index cba6bc6ab9ed..c963593eedbe 100644
+--- a/drivers/thunderbolt/nhi.c
++++ b/drivers/thunderbolt/nhi.c
+@@ -95,9 +95,20 @@ static void __iomem *ring_options_base(struct tb_ring *ring)
+ return io;
+ }
+
+-static void ring_iowrite16desc(struct tb_ring *ring, u32 value, u32 offset)
++static void ring_iowrite_cons(struct tb_ring *ring, u16 cons)
+ {
+- iowrite16(value, ring_desc_base(ring) + offset);
++ /*
++ * The other 16-bits in the register is read-only and writes to it
++ * are ignored by the hardware so we can save one ioread32() by
++ * filling the read-only bits with zeroes.
++ */
++ iowrite32(cons, ring_desc_base(ring) + 8);
++}
++
++static void ring_iowrite_prod(struct tb_ring *ring, u16 prod)
++{
++ /* See ring_iowrite_cons() above for explanation */
++ iowrite32(prod << 16, ring_desc_base(ring) + 8);
+ }
+
+ static void ring_iowrite32desc(struct tb_ring *ring, u32 value, u32 offset)
+@@ -149,7 +160,10 @@ static void ring_write_descriptors(struct tb_ring *ring)
+ descriptor->sof = frame->sof;
+ }
+ ring->head = (ring->head + 1) % ring->size;
+- ring_iowrite16desc(ring, ring->head, ring->is_tx ? 10 : 8);
++ if (ring->is_tx)
++ ring_iowrite_prod(ring, ring->head);
++ else
++ ring_iowrite_cons(ring, ring->head);
+ }
+ }
+
+@@ -369,7 +383,7 @@ void ring_stop(struct tb_ring *ring)
+
+ ring_iowrite32options(ring, 0, 0);
+ ring_iowrite64desc(ring, 0, 0);
+- ring_iowrite16desc(ring, 0, ring->is_tx ? 10 : 8);
++ ring_iowrite32desc(ring, 0, 8);
+ ring_iowrite32desc(ring, 0, 12);
+ ring->head = 0;
+ ring->tail = 0;
+diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
+index 82451bb6622b..f80a88d107d7 100644
+--- a/drivers/tty/serial/sc16is7xx.c
++++ b/drivers/tty/serial/sc16is7xx.c
+@@ -332,6 +332,7 @@ struct sc16is7xx_port {
+ struct kthread_worker kworker;
+ struct task_struct *kworker_task;
+ struct kthread_work irq_work;
++ struct mutex efr_lock;
+ struct sc16is7xx_one p[0];
+ };
+
+@@ -503,6 +504,21 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
+ div /= 4;
+ }
+
++ /* In an amazing feat of design, the Enhanced Features Register shares
++ * the address of the Interrupt Identification Register, and is
++ * switched in by writing a magic value (0xbf) to the Line Control
++ * Register. Any interrupt firing during this time will see the EFR
++ * where it expects the IIR to be, leading to "Unexpected interrupt"
++ * messages.
++ *
++ * Prevent this possibility by claiming a mutex while accessing the
++ * EFR, and claiming the same mutex from within the interrupt handler.
++ * This is similar to disabling the interrupt, but that doesn't work
++ * because the bulk of the interrupt processing is run as a workqueue
++ * job in thread context.
++ */
++ mutex_lock(&s->efr_lock);
++
+ lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG);
+
+ /* Open the LCR divisors for configuration */
+@@ -518,6 +534,8 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
+ /* Put LCR back to the normal mode */
+ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);
+
++ mutex_unlock(&s->efr_lock);
++
+ sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
+ SC16IS7XX_MCR_CLKSEL_BIT,
+ prescaler);
+@@ -700,6 +718,8 @@ static void sc16is7xx_ist(struct kthread_work *ws)
+ {
+ struct sc16is7xx_port *s = to_sc16is7xx_port(ws, irq_work);
+
++ mutex_lock(&s->efr_lock);
++
+ while (1) {
+ bool keep_polling = false;
+ int i;
+@@ -709,6 +729,8 @@ static void sc16is7xx_ist(struct kthread_work *ws)
+ if (!keep_polling)
+ break;
+ }
++
++ mutex_unlock(&s->efr_lock);
+ }
+
+ static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
+@@ -903,6 +925,9 @@ static void sc16is7xx_set_termios(struct uart_port *port,
+ if (!(termios->c_cflag & CREAD))
+ port->ignore_status_mask |= SC16IS7XX_LSR_BRK_ERROR_MASK;
+
++ /* As above, claim the mutex while accessing the EFR. */
++ mutex_lock(&s->efr_lock);
++
+ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG,
+ SC16IS7XX_LCR_CONF_MODE_B);
+
+@@ -924,6 +949,8 @@ static void sc16is7xx_set_termios(struct uart_port *port,
+ /* Update LCR register */
+ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);
+
++ mutex_unlock(&s->efr_lock);
++
+ /* Get baud rate generator configuration */
+ baud = uart_get_baud_rate(port, termios, old,
+ port->uartclk / 16 / 4 / 0xffff,
+@@ -1186,6 +1213,7 @@ static int sc16is7xx_probe(struct device *dev,
+ s->regmap = regmap;
+ s->devtype = devtype;
+ dev_set_drvdata(dev, s);
++ mutex_init(&s->efr_lock);
+
+ kthread_init_worker(&s->kworker);
+ kthread_init_work(&s->irq_work, sc16is7xx_ist);
+diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c
+index d2da6aa7f27d..1bb15edcf1e7 100644
+--- a/drivers/tty/serial/serial_mctrl_gpio.c
++++ b/drivers/tty/serial/serial_mctrl_gpio.c
+@@ -68,6 +68,9 @@ EXPORT_SYMBOL_GPL(mctrl_gpio_set);
+ struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios,
+ enum mctrl_gpio_idx gidx)
+ {
++ if (gpios == NULL)
++ return NULL;
++
+ return gpios->gpio[gidx];
+ }
+ EXPORT_SYMBOL_GPL(mctrl_gpio_to_gpiod);
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 63646dc3ca27..4a87cc478340 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -102,6 +102,8 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
+ static void hub_release(struct kref *kref);
+ static int usb_reset_and_verify_device(struct usb_device *udev);
+ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state);
++static bool hub_port_warm_reset_required(struct usb_hub *hub, int port1,
++ u16 portstatus);
+
+ static inline char *portspeed(struct usb_hub *hub, int portstatus)
+ {
+@@ -1108,6 +1110,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
+ USB_PORT_FEAT_ENABLE);
+ }
+
++ /* Make sure a warm-reset request is handled by port_event */
++ if (type == HUB_RESUME &&
++ hub_port_warm_reset_required(hub, port1, portstatus))
++ set_bit(port1, hub->event_bits);
++
+ /*
+ * Add debounce if USB3 link is in polling/link training state.
+ * Link will automatically transition to Enabled state after
+diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
+index 139f6cce30b1..95e28ecfde0a 100644
+--- a/drivers/usb/gadget/udc/core.c
++++ b/drivers/usb/gadget/udc/core.c
+@@ -106,6 +106,17 @@ int usb_ep_enable(struct usb_ep *ep)
+ if (ep->enabled)
+ goto out;
+
++ /* UDC drivers can't handle endpoints with maxpacket size 0 */
++ if (usb_endpoint_maxp(ep->desc) == 0) {
++ /*
++ * We should log an error message here, but we can't call
++ * dev_err() because there's no way to find the gadget
++ * given only ep.
++ */
++ ret = -EINVAL;
++ goto out;
++ }
++
+ ret = ep->ops->enable(ep, ep->desc);
+ if (ret)
+ goto out;
+diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
+index 52e28b4913ad..0f0cdb7b7bf8 100644
+--- a/drivers/usb/misc/ldusb.c
++++ b/drivers/usb/misc/ldusb.c
+@@ -499,11 +499,11 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
+ retval = -EFAULT;
+ goto unlock_exit;
+ }
+- dev->ring_tail = (dev->ring_tail+1) % ring_buffer_size;
+-
+ retval = bytes_to_read;
+
+ spin_lock_irq(&dev->rbsl);
++ dev->ring_tail = (dev->ring_tail + 1) % ring_buffer_size;
++
+ if (dev->buffer_overflow) {
+ dev->buffer_overflow = 0;
+ spin_unlock_irq(&dev->rbsl);
+@@ -584,7 +584,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
+ 1 << 8, 0,
+ dev->interrupt_out_buffer,
+ bytes_to_write,
+- USB_CTRL_SET_TIMEOUT * HZ);
++ USB_CTRL_SET_TIMEOUT);
+ if (retval < 0)
+ dev_err(&dev->intf->dev,
+ "Couldn't submit HID_REQ_SET_REPORT %d\n",
+diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
+index f56307059d48..7cac3ee09b09 100644
+--- a/drivers/usb/misc/legousbtower.c
++++ b/drivers/usb/misc/legousbtower.c
+@@ -898,7 +898,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
+ get_version_reply,
+ sizeof(*get_version_reply),
+ 1000);
+- if (result < sizeof(*get_version_reply)) {
++ if (result != sizeof(*get_version_reply)) {
+ if (result >= 0)
+ result = -EIO;
+ dev_err(idev, "get version request failed: %d\n", result);
+diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
+index d3ea90bef84d..345211f1a491 100644
+--- a/drivers/usb/serial/whiteheat.c
++++ b/drivers/usb/serial/whiteheat.c
+@@ -604,6 +604,10 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command,
+
+ command_port = port->serial->port[COMMAND_PORT];
+ command_info = usb_get_serial_port_data(command_port);
++
++ if (command_port->bulk_out_size < datasize + 1)
++ return -EIO;
++
+ mutex_lock(&command_info->mutex);
+ command_info->command_finished = false;
+
+@@ -677,6 +681,7 @@ static void firm_setup_port(struct tty_struct *tty)
+ struct device *dev = &port->dev;
+ struct whiteheat_port_settings port_settings;
+ unsigned int cflag = tty->termios.c_cflag;
++ speed_t baud;
+
+ port_settings.port = port->port_number + 1;
+
+@@ -737,11 +742,13 @@ static void firm_setup_port(struct tty_struct *tty)
+ dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff);
+
+ /* get the baud rate wanted */
+- port_settings.baud = tty_get_baud_rate(tty);
+- dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud);
++ baud = tty_get_baud_rate(tty);
++ port_settings.baud = cpu_to_le32(baud);
++ dev_dbg(dev, "%s - baud rate = %u\n", __func__, baud);
+
+ /* fixme: should set validated settings */
+- tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
++ tty_encode_baud_rate(tty, baud, baud);
++
+ /* handle any settings that aren't specified in the tty structure */
+ port_settings.lloop = 0;
+
+diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h
+index 38065df4d2d8..30169c859a74 100644
+--- a/drivers/usb/serial/whiteheat.h
++++ b/drivers/usb/serial/whiteheat.h
+@@ -91,7 +91,7 @@ struct whiteheat_simple {
+
+ struct whiteheat_port_settings {
+ __u8 port; /* port number (1 to N) */
+- __u32 baud; /* any value 7 - 460800, firmware calculates
++ __le32 baud; /* any value 7 - 460800, firmware calculates
+ best fit; arrives little endian */
+ __u8 bits; /* 5, 6, 7, or 8 */
+ __u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */
+diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
+index afb4b0bf47b3..fd5398efce41 100644
+--- a/drivers/usb/storage/scsiglue.c
++++ b/drivers/usb/storage/scsiglue.c
+@@ -81,7 +81,6 @@ static const char* host_info(struct Scsi_Host *host)
+ static int slave_alloc (struct scsi_device *sdev)
+ {
+ struct us_data *us = host_to_us(sdev->host);
+- int maxp;
+
+ /*
+ * Set the INQUIRY transfer length to 36. We don't use any of
+@@ -90,15 +89,6 @@ static int slave_alloc (struct scsi_device *sdev)
+ */
+ sdev->inquiry_len = 36;
+
+- /*
+- * USB has unusual scatter-gather requirements: the length of each
+- * scatterlist element except the last must be divisible by the
+- * Bulk maxpacket value. Fortunately this value is always a
+- * power of 2. Inform the block layer about this requirement.
+- */
+- maxp = usb_maxpacket(us->pusb_dev, us->recv_bulk_pipe, 0);
+- blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
+-
+ /*
+ * Some host controllers may have alignment requirements.
+ * We'll play it safe by requiring 512-byte alignment always.
+diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
+index 97621e5bdad7..597bc550034f 100644
+--- a/drivers/usb/storage/uas.c
++++ b/drivers/usb/storage/uas.c
+@@ -796,29 +796,9 @@ static int uas_slave_alloc(struct scsi_device *sdev)
+ {
+ struct uas_dev_info *devinfo =
+ (struct uas_dev_info *)sdev->host->hostdata;
+- int maxp;
+
+ sdev->hostdata = devinfo;
+
+- /*
+- * We have two requirements here. We must satisfy the requirements
+- * of the physical HC and the demands of the protocol, as we
+- * definitely want no additional memory allocation in this path
+- * ruling out using bounce buffers.
+- *
+- * For a transmission on USB to continue we must never send
+- * a package that is smaller than maxpacket. Hence the length of each
+- * scatterlist element except the last must be divisible by the
+- * Bulk maxpacket value.
+- * If the HC does not ensure that through SG,
+- * the upper layer must do that. We must assume nothing
+- * about the capabilities off the HC, so we use the most
+- * pessimistic requirement.
+- */
+-
+- maxp = usb_maxpacket(devinfo->udev, devinfo->data_in_pipe, 0);
+- blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
+-
+ /*
+ * The protocol has no requirements on alignment in the strict sense.
+ * Controllers may or may not have alignment restrictions.
+diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
+index afdf4e3cafc2..37c2093a24d3 100644
+--- a/fs/binfmt_script.c
++++ b/fs/binfmt_script.c
+@@ -14,14 +14,31 @@
+ #include <linux/err.h>
+ #include <linux/fs.h>
+
++static inline bool spacetab(char c) { return c == ' ' || c == '\t'; }
++static inline char *next_non_spacetab(char *first, const char *last)
++{
++ for (; first <= last; first++)
++ if (!spacetab(*first))
++ return first;
++ return NULL;
++}
++static inline char *next_terminator(char *first, const char *last)
++{
++ for (; first <= last; first++)
++ if (spacetab(*first) || !*first)
++ return first;
++ return NULL;
++}
++
+ static int load_script(struct linux_binprm *bprm)
+ {
+ const char *i_arg, *i_name;
+- char *cp;
++ char *cp, *buf_end;
+ struct file *file;
+ char interp[BINPRM_BUF_SIZE];
+ int retval;
+
++ /* Not ours to exec if we don't start with "#!". */
+ if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!'))
+ return -ENOEXEC;
+
+@@ -34,18 +51,40 @@ static int load_script(struct linux_binprm *bprm)
+ if (bprm->interp_flags & BINPRM_FLAGS_PATH_INACCESSIBLE)
+ return -ENOENT;
+
+- /*
+- * This section does the #! interpretation.
+- * Sorta complicated, but hopefully it will work. -TYT
+- */
+-
++ /* Release since we are not mapping a binary into memory. */
+ allow_write_access(bprm->file);
+ fput(bprm->file);
+ bprm->file = NULL;
+
+- bprm->buf[BINPRM_BUF_SIZE - 1] = '\0';
+- if ((cp = strchr(bprm->buf, '\n')) == NULL)
+- cp = bprm->buf+BINPRM_BUF_SIZE-1;
++ /*
++ * This section handles parsing the #! line into separate
++ * interpreter path and argument strings. We must be careful
++ * because bprm->buf is not yet guaranteed to be NUL-terminated
++ * (though the buffer will have trailing NUL padding when the
++ * file size was smaller than the buffer size).
++ *
++ * We do not want to exec a truncated interpreter path, so either
++ * we find a newline (which indicates nothing is truncated), or
++ * we find a space/tab/NUL after the interpreter path (which
++ * itself may be preceded by spaces/tabs). Truncating the
++ * arguments is fine: the interpreter can re-read the script to
++ * parse them on its own.
++ */
++ buf_end = bprm->buf + sizeof(bprm->buf) - 1;
++ cp = strnchr(bprm->buf, sizeof(bprm->buf), '\n');
++ if (!cp) {
++ cp = next_non_spacetab(bprm->buf + 2, buf_end);
++ if (!cp)
++ return -ENOEXEC; /* Entire buf is spaces/tabs */
++ /*
++ * If there is no later space/tab/NUL we must assume the
++ * interpreter path is truncated.
++ */
++ if (!next_terminator(cp, buf_end))
++ return -ENOEXEC;
++ cp = buf_end;
++ }
++ /* NUL-terminate the buffer and any trailing spaces/tabs. */
+ *cp = '\0';
+ while (cp > bprm->buf) {
+ cp--;
+diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
+index cc88f4f0325e..bed973330227 100644
+--- a/fs/cifs/netmisc.c
++++ b/fs/cifs/netmisc.c
+@@ -130,10 +130,6 @@ static const struct smb_to_posix_error mapping_table_ERRSRV[] = {
+ {0, 0}
+ };
+
+-static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
+- {0, 0}
+-};
+-
+ /*
+ * Convert a string containing text IPv4 or IPv6 address to binary form.
+ *
+diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
+index 60dd2bc10776..1d9fec9c714b 100644
+--- a/fs/fuse/dir.c
++++ b/fs/fuse/dir.c
+@@ -1654,6 +1654,19 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
+ if (attr->ia_valid & ATTR_SIZE)
+ is_truncate = true;
+
++ /* Flush dirty data/metadata before non-truncate SETATTR */
++ if (is_wb && S_ISREG(inode->i_mode) &&
++ attr->ia_valid &
++ (ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_MTIME_SET |
++ ATTR_TIMES_SET)) {
++ err = write_inode_now(inode, true);
++ if (err)
++ return err;
++
++ fuse_set_nowrite(inode);
++ fuse_release_nowrite(inode);
++ }
++
+ if (is_truncate) {
+ fuse_set_nowrite(inode);
+ set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index 1b0e7b1039c1..92f905ea20b0 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -201,7 +201,7 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir)
+ {
+ struct fuse_conn *fc = get_fuse_conn(inode);
+ int err;
+- bool lock_inode = (file->f_flags & O_TRUNC) &&
++ bool is_wb_truncate = (file->f_flags & O_TRUNC) &&
+ fc->atomic_o_trunc &&
+ fc->writeback_cache;
+
+@@ -209,16 +209,20 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir)
+ if (err)
+ return err;
+
+- if (lock_inode)
++ if (is_wb_truncate) {
+ inode_lock(inode);
++ fuse_set_nowrite(inode);
++ }
+
+ err = fuse_do_open(fc, get_node_id(inode), file, isdir);
+
+ if (!err)
+ fuse_finish_open(inode, file);
+
+- if (lock_inode)
++ if (is_wb_truncate) {
++ fuse_release_nowrite(inode);
+ inode_unlock(inode);
++ }
+
+ return err;
+ }
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index ea29c608be89..8354dfae7038 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -5544,6 +5544,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
+ }
+ status = task->tk_status;
+ if (setclientid.sc_cred) {
++ kfree(clp->cl_acceptor);
+ clp->cl_acceptor = rpcauth_stringify_acceptor(setclientid.sc_cred);
+ put_rpccred(setclientid.sc_cred);
+ }
+diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
+index c26d046adaaa..6ad76397b31d 100644
+--- a/fs/ocfs2/aops.c
++++ b/fs/ocfs2/aops.c
+@@ -2046,7 +2046,8 @@ out_write_size:
+ inode->i_mtime = inode->i_ctime = current_time(inode);
+ di->i_mtime = di->i_ctime = cpu_to_le64(inode->i_mtime.tv_sec);
+ di->i_mtime_nsec = di->i_ctime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
+- ocfs2_update_inode_fsync_trans(handle, inode, 1);
++ if (handle)
++ ocfs2_update_inode_fsync_trans(handle, inode, 1);
+ }
+ if (handle)
+ ocfs2_journal_dirty(handle, wc->w_di_bh);
+@@ -2143,13 +2144,30 @@ static int ocfs2_dio_wr_get_block(struct inode *inode, sector_t iblock,
+ struct ocfs2_dio_write_ctxt *dwc = NULL;
+ struct buffer_head *di_bh = NULL;
+ u64 p_blkno;
+- loff_t pos = iblock << inode->i_sb->s_blocksize_bits;
++ unsigned int i_blkbits = inode->i_sb->s_blocksize_bits;
++ loff_t pos = iblock << i_blkbits;
++ sector_t endblk = (i_size_read(inode) - 1) >> i_blkbits;
+ unsigned len, total_len = bh_result->b_size;
+ int ret = 0, first_get_block = 0;
+
+ len = osb->s_clustersize - (pos & (osb->s_clustersize - 1));
+ len = min(total_len, len);
+
++ /*
++ * bh_result->b_size is count in get_more_blocks according to write
++ * "pos" and "end", we need map twice to return different buffer state:
++ * 1. area in file size, not set NEW;
++ * 2. area out file size, set NEW.
++ *
++ * iblock endblk
++ * |--------|---------|---------|---------
++ * |<-------area in file------->|
++ */
++
++ if ((iblock <= endblk) &&
++ ((iblock + ((len - 1) >> i_blkbits)) > endblk))
++ len = (endblk - iblock + 1) << i_blkbits;
++
+ mlog(0, "get block of %lu at %llu:%u req %u\n",
+ inode->i_ino, pos, len, total_len);
+
+@@ -2233,6 +2251,9 @@ static int ocfs2_dio_wr_get_block(struct inode *inode, sector_t iblock,
+ if (desc->c_needs_zero)
+ set_buffer_new(bh_result);
+
++ if (iblock > endblk)
++ set_buffer_new(bh_result);
++
+ /* May sleep in end_io. It should not happen in a irq context. So defer
+ * it to dio work queue. */
+ set_buffer_defer_completion(bh_result);
+diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
+index 4506ec5ec2ea..bfc44644301c 100644
+--- a/fs/ocfs2/ioctl.c
++++ b/fs/ocfs2/ioctl.c
+@@ -289,7 +289,7 @@ static int ocfs2_info_scan_inode_alloc(struct ocfs2_super *osb,
+ if (inode_alloc)
+ inode_lock(inode_alloc);
+
+- if (o2info_coherent(&fi->ifi_req)) {
++ if (inode_alloc && o2info_coherent(&fi->ifi_req)) {
+ status = ocfs2_inode_lock(inode_alloc, &bh, 0);
+ if (status < 0) {
+ mlog_errno(status);
+diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
+index e108c945ac1f..c387467d574c 100644
+--- a/fs/ocfs2/xattr.c
++++ b/fs/ocfs2/xattr.c
+@@ -1497,18 +1497,6 @@ static int ocfs2_xa_check_space(struct ocfs2_xa_loc *loc,
+ return loc->xl_ops->xlo_check_space(loc, xi);
+ }
+
+-static void ocfs2_xa_add_entry(struct ocfs2_xa_loc *loc, u32 name_hash)
+-{
+- loc->xl_ops->xlo_add_entry(loc, name_hash);
+- loc->xl_entry->xe_name_hash = cpu_to_le32(name_hash);
+- /*
+- * We can't leave the new entry's xe_name_offset at zero or
+- * add_namevalue() will go nuts. We set it to the size of our
+- * storage so that it can never be less than any other entry.
+- */
+- loc->xl_entry->xe_name_offset = cpu_to_le16(loc->xl_size);
+-}
+-
+ static void ocfs2_xa_add_namevalue(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+ {
+@@ -2140,29 +2128,31 @@ static int ocfs2_xa_prepare_entry(struct ocfs2_xa_loc *loc,
+ if (rc)
+ goto out;
+
+- if (loc->xl_entry) {
+- if (ocfs2_xa_can_reuse_entry(loc, xi)) {
+- orig_value_size = loc->xl_entry->xe_value_size;
+- rc = ocfs2_xa_reuse_entry(loc, xi, ctxt);
+- if (rc)
+- goto out;
+- goto alloc_value;
+- }
++ if (!loc->xl_entry) {
++ rc = -EINVAL;
++ goto out;
++ }
+
+- if (!ocfs2_xattr_is_local(loc->xl_entry)) {
+- orig_clusters = ocfs2_xa_value_clusters(loc);
+- rc = ocfs2_xa_value_truncate(loc, 0, ctxt);
+- if (rc) {
+- mlog_errno(rc);
+- ocfs2_xa_cleanup_value_truncate(loc,
+- "overwriting",
+- orig_clusters);
+- goto out;
+- }
++ if (ocfs2_xa_can_reuse_entry(loc, xi)) {
++ orig_value_size = loc->xl_entry->xe_value_size;
++ rc = ocfs2_xa_reuse_entry(loc, xi, ctxt);
++ if (rc)
++ goto out;
++ goto alloc_value;
++ }
++
++ if (!ocfs2_xattr_is_local(loc->xl_entry)) {
++ orig_clusters = ocfs2_xa_value_clusters(loc);
++ rc = ocfs2_xa_value_truncate(loc, 0, ctxt);
++ if (rc) {
++ mlog_errno(rc);
++ ocfs2_xa_cleanup_value_truncate(loc,
++ "overwriting",
++ orig_clusters);
++ goto out;
+ }
+- ocfs2_xa_wipe_namevalue(loc);
+- } else
+- ocfs2_xa_add_entry(loc, name_hash);
++ }
++ ocfs2_xa_wipe_namevalue(loc);
+
+ /*
+ * If we get here, we have a blank entry. Fill it. We grow our
+diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
+index 3f45d9867e10..651755353374 100644
+--- a/fs/xfs/xfs_buf.c
++++ b/fs/xfs/xfs_buf.c
+@@ -1674,7 +1674,7 @@ xfs_buftarg_isolate(
+ * zero. If the value is already zero, we need to reclaim the
+ * buffer, otherwise it gets another trip through the LRU.
+ */
+- if (!atomic_add_unless(&bp->b_lru_ref, -1, 0)) {
++ if (atomic_add_unless(&bp->b_lru_ref, -1, 0)) {
+ spin_unlock(&bp->b_lock);
+ return LRU_ROTATE;
+ }
+diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h
+index df528a623548..ea985aa7a6c5 100644
+--- a/include/net/llc_conn.h
++++ b/include/net/llc_conn.h
+@@ -104,7 +104,7 @@ void llc_sk_reset(struct sock *sk);
+
+ /* Access to a connection */
+ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb);
+-int llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
++void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
+ void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb);
+ void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr, u8 first_p_bit);
+ void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr, u8 first_f_bit);
+diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
+index 538f3c4458b0..5d5a137b9067 100644
+--- a/include/net/sch_generic.h
++++ b/include/net/sch_generic.h
+@@ -276,6 +276,11 @@ static inline struct Qdisc *qdisc_root(const struct Qdisc *qdisc)
+ return q;
+ }
+
++static inline struct Qdisc *qdisc_root_bh(const struct Qdisc *qdisc)
++{
++ return rcu_dereference_bh(qdisc->dev_queue->qdisc);
++}
++
+ static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
+ {
+ return qdisc->dev_queue->qdisc_sleeping;
+diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
+index 579ded2c6ef1..32db5208854d 100644
+--- a/include/net/sctp/sctp.h
++++ b/include/net/sctp/sctp.h
+@@ -103,6 +103,8 @@ void sctp_addr_wq_mgmt(struct net *, struct sctp_sockaddr_entry *, int);
+ /*
+ * sctp/socket.c
+ */
++int sctp_inet_connect(struct socket *sock, struct sockaddr *uaddr,
++ int addr_len, int flags);
+ int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
+ int sctp_inet_listen(struct socket *sock, int backlog);
+ void sctp_write_space(struct sock *sk);
+diff --git a/include/sound/timer.h b/include/sound/timer.h
+index c4d76ff056c6..7ae226ab6990 100644
+--- a/include/sound/timer.h
++++ b/include/sound/timer.h
+@@ -90,6 +90,8 @@ struct snd_timer {
+ struct list_head ack_list_head;
+ struct list_head sack_list_head; /* slow ack list head */
+ struct tasklet_struct task_queue;
++ int max_instances; /* upper limit of timer instances */
++ int num_instances; /* current number of timer instances */
+ };
+
+ struct snd_timer_instance {
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index 827ba2caea09..6a170a78b453 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -5217,6 +5217,7 @@ waitagain:
+ sizeof(struct trace_iterator) -
+ offsetof(struct trace_iterator, seq));
+ cpumask_clear(iter->started);
++ trace_seq_init(&iter->seq);
+ iter->pos = -1;
+
+ trace_event_read_lock();
+diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c
+index 4b60f68cb492..8354ae40ec85 100644
+--- a/net/llc/llc_c_ac.c
++++ b/net/llc/llc_c_ac.c
+@@ -372,6 +372,7 @@ int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb)
+ llc_pdu_init_as_i_cmd(skb, 1, llc->vS, llc->vR);
+ rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
+ if (likely(!rc)) {
++ skb_get(skb);
+ llc_conn_send_pdu(sk, skb);
+ llc_conn_ac_inc_vs_by_1(sk, skb);
+ }
+@@ -389,7 +390,8 @@ static int llc_conn_ac_send_i_cmd_p_set_0(struct sock *sk, struct sk_buff *skb)
+ llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR);
+ rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
+ if (likely(!rc)) {
+- rc = llc_conn_send_pdu(sk, skb);
++ skb_get(skb);
++ llc_conn_send_pdu(sk, skb);
+ llc_conn_ac_inc_vs_by_1(sk, skb);
+ }
+ return rc;
+@@ -406,6 +408,7 @@ int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
+ llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR);
+ rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
+ if (likely(!rc)) {
++ skb_get(skb);
+ llc_conn_send_pdu(sk, skb);
+ llc_conn_ac_inc_vs_by_1(sk, skb);
+ }
+@@ -916,7 +919,8 @@ static int llc_conn_ac_send_i_rsp_f_set_ackpf(struct sock *sk,
+ llc_pdu_init_as_i_cmd(skb, llc->ack_pf, llc->vS, llc->vR);
+ rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
+ if (likely(!rc)) {
+- rc = llc_conn_send_pdu(sk, skb);
++ skb_get(skb);
++ llc_conn_send_pdu(sk, skb);
+ llc_conn_ac_inc_vs_by_1(sk, skb);
+ }
+ return rc;
+diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
+index b9290a183a2f..94c78cc49d3e 100644
+--- a/net/llc/llc_conn.c
++++ b/net/llc/llc_conn.c
+@@ -30,7 +30,7 @@
+ #endif
+
+ static int llc_find_offset(int state, int ev_type);
+-static int llc_conn_send_pdus(struct sock *sk, struct sk_buff *skb);
++static void llc_conn_send_pdus(struct sock *sk);
+ static int llc_conn_service(struct sock *sk, struct sk_buff *skb);
+ static int llc_exec_conn_trans_actions(struct sock *sk,
+ struct llc_conn_state_trans *trans,
+@@ -193,11 +193,11 @@ out_skb_put:
+ return rc;
+ }
+
+-int llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb)
++void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb)
+ {
+ /* queue PDU to send to MAC layer */
+ skb_queue_tail(&sk->sk_write_queue, skb);
+- return llc_conn_send_pdus(sk, skb);
++ llc_conn_send_pdus(sk);
+ }
+
+ /**
+@@ -255,7 +255,7 @@ void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr, u8 first_p_bit)
+ if (howmany_resend > 0)
+ llc->vS = (llc->vS + 1) % LLC_2_SEQ_NBR_MODULO;
+ /* any PDUs to re-send are queued up; start sending to MAC */
+- llc_conn_send_pdus(sk, NULL);
++ llc_conn_send_pdus(sk);
+ out:;
+ }
+
+@@ -296,7 +296,7 @@ void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr, u8 first_f_bit)
+ if (howmany_resend > 0)
+ llc->vS = (llc->vS + 1) % LLC_2_SEQ_NBR_MODULO;
+ /* any PDUs to re-send are queued up; start sending to MAC */
+- llc_conn_send_pdus(sk, NULL);
++ llc_conn_send_pdus(sk);
+ out:;
+ }
+
+@@ -340,16 +340,12 @@ out:
+ /**
+ * llc_conn_send_pdus - Sends queued PDUs
+ * @sk: active connection
+- * @hold_skb: the skb held by caller, or NULL if does not care
+ *
+- * Sends queued pdus to MAC layer for transmission. When @hold_skb is
+- * NULL, always return 0. Otherwise, return 0 if @hold_skb is sent
+- * successfully, or 1 for failure.
++ * Sends queued pdus to MAC layer for transmission.
+ */
+-static int llc_conn_send_pdus(struct sock *sk, struct sk_buff *hold_skb)
++static void llc_conn_send_pdus(struct sock *sk)
+ {
+ struct sk_buff *skb;
+- int ret = 0;
+
+ while ((skb = skb_dequeue(&sk->sk_write_queue)) != NULL) {
+ struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+@@ -361,20 +357,10 @@ static int llc_conn_send_pdus(struct sock *sk, struct sk_buff *hold_skb)
+ skb_queue_tail(&llc_sk(sk)->pdu_unack_q, skb);
+ if (!skb2)
+ break;
+- dev_queue_xmit(skb2);
+- } else {
+- bool is_target = skb == hold_skb;
+- int rc;
+-
+- if (is_target)
+- skb_get(skb);
+- rc = dev_queue_xmit(skb);
+- if (is_target)
+- ret = rc;
++ skb = skb2;
+ }
++ dev_queue_xmit(skb);
+ }
+-
+- return ret;
+ }
+
+ /**
+diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c
+index a94bd56bcac6..7ae4cc684d3a 100644
+--- a/net/llc/llc_s_ac.c
++++ b/net/llc/llc_s_ac.c
+@@ -58,8 +58,10 @@ int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb)
+ ev->daddr.lsap, LLC_PDU_CMD);
+ llc_pdu_init_as_ui_cmd(skb);
+ rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac);
+- if (likely(!rc))
++ if (likely(!rc)) {
++ skb_get(skb);
+ rc = dev_queue_xmit(skb);
++ }
+ return rc;
+ }
+
+@@ -81,8 +83,10 @@ int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb)
+ ev->daddr.lsap, LLC_PDU_CMD);
+ llc_pdu_init_as_xid_cmd(skb, LLC_XID_NULL_CLASS_2, 0);
+ rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac);
+- if (likely(!rc))
++ if (likely(!rc)) {
++ skb_get(skb);
+ rc = dev_queue_xmit(skb);
++ }
+ return rc;
+ }
+
+@@ -135,8 +139,10 @@ int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb)
+ ev->daddr.lsap, LLC_PDU_CMD);
+ llc_pdu_init_as_test_cmd(skb);
+ rc = llc_mac_hdr_init(skb, ev->saddr.mac, ev->daddr.mac);
+- if (likely(!rc))
++ if (likely(!rc)) {
++ skb_get(skb);
+ rc = dev_queue_xmit(skb);
++ }
+ return rc;
+ }
+
+diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c
+index 5404d0d195cc..d51ff9df9c95 100644
+--- a/net/llc/llc_sap.c
++++ b/net/llc/llc_sap.c
+@@ -197,29 +197,22 @@ out:
+ * After executing actions of the event, upper layer will be indicated
+ * if needed(on receiving an UI frame). sk can be null for the
+ * datalink_proto case.
++ *
++ * This function always consumes a reference to the skb.
+ */
+ static void llc_sap_state_process(struct llc_sap *sap, struct sk_buff *skb)
+ {
+ struct llc_sap_state_ev *ev = llc_sap_ev(skb);
+
+- /*
+- * We have to hold the skb, because llc_sap_next_state
+- * will kfree it in the sending path and we need to
+- * look at the skb->cb, where we encode llc_sap_state_ev.
+- */
+- skb_get(skb);
+ ev->ind_cfm_flag = 0;
+ llc_sap_next_state(sap, skb);
+- if (ev->ind_cfm_flag == LLC_IND) {
+- if (skb->sk->sk_state == TCP_LISTEN)
+- kfree_skb(skb);
+- else {
+- llc_save_primitive(skb->sk, skb, ev->prim);
+
+- /* queue skb to the user. */
+- if (sock_queue_rcv_skb(skb->sk, skb))
+- kfree_skb(skb);
+- }
++ if (ev->ind_cfm_flag == LLC_IND && skb->sk->sk_state != TCP_LISTEN) {
++ llc_save_primitive(skb->sk, skb, ev->prim);
++
++ /* queue skb to the user. */
++ if (sock_queue_rcv_skb(skb->sk, skb) == 0)
++ return;
+ }
+ kfree_skb(skb);
+ }
+diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
+index 12e3ae09c4ba..95002e56fa48 100644
+--- a/net/sched/sch_netem.c
++++ b/net/sched/sch_netem.c
+@@ -475,7 +475,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
+ * skb will be queued.
+ */
+ if (count > 1 && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
+- struct Qdisc *rootq = qdisc_root(sch);
++ struct Qdisc *rootq = qdisc_root_bh(sch);
+ u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
+
+ q->duplicate = 0;
+diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
+index 31f461f955ec..824ebbffea33 100644
+--- a/net/sctp/ipv6.c
++++ b/net/sctp/ipv6.c
+@@ -973,7 +973,7 @@ static const struct proto_ops inet6_seqpacket_ops = {
+ .owner = THIS_MODULE,
+ .release = inet6_release,
+ .bind = inet6_bind,
+- .connect = inet_dgram_connect,
++ .connect = sctp_inet_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = inet_accept,
+ .getname = sctp_getname,
+diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
+index 833283c8fe11..9cb06ca4eaba 100644
+--- a/net/sctp/protocol.c
++++ b/net/sctp/protocol.c
+@@ -1014,7 +1014,7 @@ static const struct proto_ops inet_seqpacket_ops = {
+ .owner = THIS_MODULE,
+ .release = inet_release, /* Needs to be wrapped... */
+ .bind = inet_bind,
+- .connect = inet_dgram_connect,
++ .connect = sctp_inet_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = inet_accept,
+ .getname = inet_getname, /* Semantics are different. */
+diff --git a/net/sctp/socket.c b/net/sctp/socket.c
+index 574a6a2c48d7..c952abf22535 100644
+--- a/net/sctp/socket.c
++++ b/net/sctp/socket.c
+@@ -1074,7 +1074,7 @@ out:
+ */
+ static int __sctp_connect(struct sock *sk,
+ struct sockaddr *kaddrs,
+- int addrs_size,
++ int addrs_size, int flags,
+ sctp_assoc_t *assoc_id)
+ {
+ struct net *net = sock_net(sk);
+@@ -1092,7 +1092,6 @@ static int __sctp_connect(struct sock *sk,
+ union sctp_addr *sa_addr = NULL;
+ void *addr_buf;
+ unsigned short port;
+- unsigned int f_flags = 0;
+
+ sp = sctp_sk(sk);
+ ep = sp->ep;
+@@ -1240,13 +1239,7 @@ static int __sctp_connect(struct sock *sk,
+ sp->pf->to_sk_daddr(sa_addr, sk);
+ sk->sk_err = 0;
+
+- /* in-kernel sockets don't generally have a file allocated to them
+- * if all they do is call sock_create_kern().
+- */
+- if (sk->sk_socket->file)
+- f_flags = sk->sk_socket->file->f_flags;
+-
+- timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
++ timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
+
+ if (assoc_id)
+ *assoc_id = asoc->assoc_id;
+@@ -1341,7 +1334,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
+ {
+ struct sockaddr *kaddrs;
+ gfp_t gfp = GFP_KERNEL;
+- int err = 0;
++ int err = 0, flags = 0;
+
+ pr_debug("%s: sk:%p addrs:%p addrs_size:%d\n",
+ __func__, sk, addrs, addrs_size);
+@@ -1361,11 +1354,18 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
+ return -ENOMEM;
+
+ if (__copy_from_user(kaddrs, addrs, addrs_size)) {
+- err = -EFAULT;
+- } else {
+- err = __sctp_connect(sk, kaddrs, addrs_size, assoc_id);
++ kfree(kaddrs);
++ return -EFAULT;
+ }
+
++ /* in-kernel sockets don't generally have a file allocated to them
++ * if all they do is call sock_create_kern().
++ */
++ if (sk->sk_socket->file)
++ flags = sk->sk_socket->file->f_flags;
++
++ err = __sctp_connect(sk, kaddrs, addrs_size, flags, assoc_id);
++
+ kfree(kaddrs);
+
+ return err;
+@@ -3979,31 +3979,36 @@ out_nounlock:
+ * len: the size of the address.
+ */
+ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
+- int addr_len)
++ int addr_len, int flags)
+ {
+- int err = 0;
+ struct sctp_af *af;
++ int err = -EINVAL;
+
+ lock_sock(sk);
+-
+ pr_debug("%s: sk:%p, sockaddr:%p, addr_len:%d\n", __func__, sk,
+ addr, addr_len);
+
+ /* Validate addr_len before calling common connect/connectx routine. */
+ af = sctp_get_af_specific(addr->sa_family);
+- if (!af || addr_len < af->sockaddr_len) {
+- err = -EINVAL;
+- } else {
+- /* Pass correct addr len to common routine (so it knows there
+- * is only one address being passed.
+- */
+- err = __sctp_connect(sk, addr, af->sockaddr_len, NULL);
+- }
++ if (af && addr_len >= af->sockaddr_len)
++ err = __sctp_connect(sk, addr, af->sockaddr_len, flags, NULL);
+
+ release_sock(sk);
+ return err;
+ }
+
++int sctp_inet_connect(struct socket *sock, struct sockaddr *uaddr,
++ int addr_len, int flags)
++{
++ if (addr_len < sizeof(uaddr->sa_family))
++ return -EINVAL;
++
++ if (uaddr->sa_family == AF_UNSPEC)
++ return -EOPNOTSUPP;
++
++ return sctp_connect(sock->sk, uaddr, addr_len, flags);
++}
++
+ /* FIXME: Write comments. */
+ static int sctp_disconnect(struct sock *sk, int flags)
+ {
+@@ -7896,7 +7901,6 @@ struct proto sctp_prot = {
+ .name = "SCTP",
+ .owner = THIS_MODULE,
+ .close = sctp_close,
+- .connect = sctp_connect,
+ .disconnect = sctp_disconnect,
+ .accept = sctp_accept,
+ .ioctl = sctp_ioctl,
+@@ -7935,7 +7939,6 @@ struct proto sctpv6_prot = {
+ .name = "SCTPv6",
+ .owner = THIS_MODULE,
+ .close = sctp_close,
+- .connect = sctp_connect,
+ .disconnect = sctp_disconnect,
+ .accept = sctp_accept,
+ .ioctl = sctp_ioctl,
+diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
+index ac75e6d4eb82..060bc0cc8252 100644
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -295,7 +295,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
+ [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
+ [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_MESH_ID_LEN },
+- [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
++ [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_BINARY,
++ .len = ETH_ALEN },
+
+ [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
+ [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
+diff --git a/scripts/setlocalversion b/scripts/setlocalversion
+index 966dd3924ea9..aa28c3f29809 100755
+--- a/scripts/setlocalversion
++++ b/scripts/setlocalversion
+@@ -72,8 +72,16 @@ scm_version()
+ printf -- '-svn%s' "`git svn find-rev $head`"
+ fi
+
+- # Check for uncommitted changes
+- if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
++ # Check for uncommitted changes.
++ # First, with git-status, but --no-optional-locks is only
++ # supported in git >= 2.14, so fall back to git-diff-index if
++ # it fails. Note that git-diff-index does not refresh the
++ # index, so it may give misleading results. See
++ # git-update-index(1), git-diff-index(1), and git-status(1).
++ if {
++ git --no-optional-locks status -uno --porcelain 2>/dev/null ||
++ git diff-index --name-only HEAD
++ } | grep -qvE '^(.. )?scripts/package'; then
+ printf '%s' -dirty
+ fi
+
+diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
+index e2f27022b363..d7dddb75e7bb 100644
+--- a/sound/core/hrtimer.c
++++ b/sound/core/hrtimer.c
+@@ -159,6 +159,7 @@ static int __init snd_hrtimer_init(void)
+ timer->hw = hrtimer_hw;
+ timer->hw.resolution = resolution;
+ timer->hw.ticks = NANO_SEC / resolution;
++ timer->max_instances = 100; /* lower the limit */
+
+ err = snd_timer_global_register(timer);
+ if (err < 0) {
+diff --git a/sound/core/timer.c b/sound/core/timer.c
+index 152254193c69..19d90aa08218 100644
+--- a/sound/core/timer.c
++++ b/sound/core/timer.c
+@@ -179,7 +179,7 @@ static void snd_timer_request(struct snd_timer_id *tid)
+ *
+ * call this with register_mutex down.
+ */
+-static void snd_timer_check_slave(struct snd_timer_instance *slave)
++static int snd_timer_check_slave(struct snd_timer_instance *slave)
+ {
+ struct snd_timer *timer;
+ struct snd_timer_instance *master;
+@@ -189,16 +189,21 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
+ list_for_each_entry(master, &timer->open_list_head, open_list) {
+ if (slave->slave_class == master->slave_class &&
+ slave->slave_id == master->slave_id) {
++ if (master->timer->num_instances >=
++ master->timer->max_instances)
++ return -EBUSY;
+ list_move_tail(&slave->open_list,
+ &master->slave_list_head);
++ master->timer->num_instances++;
+ spin_lock_irq(&slave_active_lock);
+ slave->master = master;
+ slave->timer = master->timer;
+ spin_unlock_irq(&slave_active_lock);
+- return;
++ return 0;
+ }
+ }
+ }
++ return 0;
+ }
+
+ /*
+@@ -207,7 +212,7 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
+ *
+ * call this with register_mutex down.
+ */
+-static void snd_timer_check_master(struct snd_timer_instance *master)
++static int snd_timer_check_master(struct snd_timer_instance *master)
+ {
+ struct snd_timer_instance *slave, *tmp;
+
+@@ -215,7 +220,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
+ list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) {
+ if (slave->slave_class == master->slave_class &&
+ slave->slave_id == master->slave_id) {
++ if (master->timer->num_instances >=
++ master->timer->max_instances)
++ return -EBUSY;
+ list_move_tail(&slave->open_list, &master->slave_list_head);
++ master->timer->num_instances++;
+ spin_lock_irq(&slave_active_lock);
+ spin_lock(&master->timer->lock);
+ slave->master = master;
+@@ -227,8 +236,12 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
+ spin_unlock_irq(&slave_active_lock);
+ }
+ }
++ return 0;
+ }
+
++static int snd_timer_close_locked(struct snd_timer_instance *timeri,
++ struct device **card_devp_to_put);
++
+ /*
+ * open a timer instance
+ * when opening a master, the slave id must be here given.
+@@ -239,33 +252,37 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ {
+ struct snd_timer *timer;
+ struct snd_timer_instance *timeri = NULL;
++ struct device *card_dev_to_put = NULL;
++ int err;
+
++ mutex_lock(®ister_mutex);
+ if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) {
+ /* open a slave instance */
+ if (tid->dev_sclass <= SNDRV_TIMER_SCLASS_NONE ||
+ tid->dev_sclass > SNDRV_TIMER_SCLASS_OSS_SEQUENCER) {
+ pr_debug("ALSA: timer: invalid slave class %i\n",
+ tid->dev_sclass);
+- return -EINVAL;
++ err = -EINVAL;
++ goto unlock;
+ }
+- mutex_lock(®ister_mutex);
+ timeri = snd_timer_instance_new(owner, NULL);
+ if (!timeri) {
+- mutex_unlock(®ister_mutex);
+- return -ENOMEM;
++ err = -ENOMEM;
++ goto unlock;
+ }
+ timeri->slave_class = tid->dev_sclass;
+ timeri->slave_id = tid->device;
+ timeri->flags |= SNDRV_TIMER_IFLG_SLAVE;
+ list_add_tail(&timeri->open_list, &snd_timer_slave_list);
+- snd_timer_check_slave(timeri);
+- mutex_unlock(®ister_mutex);
+- *ti = timeri;
+- return 0;
++ err = snd_timer_check_slave(timeri);
++ if (err < 0) {
++ snd_timer_close_locked(timeri, &card_dev_to_put);
++ timeri = NULL;
++ }
++ goto unlock;
+ }
+
+ /* open a master instance */
+- mutex_lock(®ister_mutex);
+ timer = snd_timer_find(tid);
+ #ifdef CONFIG_MODULES
+ if (!timer) {
+@@ -276,21 +293,26 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ }
+ #endif
+ if (!timer) {
+- mutex_unlock(®ister_mutex);
+- return -ENODEV;
++ err = -ENODEV;
++ goto unlock;
+ }
+ if (!list_empty(&timer->open_list_head)) {
+ timeri = list_entry(timer->open_list_head.next,
+ struct snd_timer_instance, open_list);
+ if (timeri->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) {
+- mutex_unlock(®ister_mutex);
+- return -EBUSY;
++ err = -EBUSY;
++ timeri = NULL;
++ goto unlock;
+ }
+ }
++ if (timer->num_instances >= timer->max_instances) {
++ err = -EBUSY;
++ goto unlock;
++ }
+ timeri = snd_timer_instance_new(owner, timer);
+ if (!timeri) {
+- mutex_unlock(®ister_mutex);
+- return -ENOMEM;
++ err = -ENOMEM;
++ goto unlock;
+ }
+ /* take a card refcount for safe disconnection */
+ if (timer->card)
+@@ -299,38 +321,47 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ timeri->slave_id = slave_id;
+
+ if (list_empty(&timer->open_list_head) && timer->hw.open) {
+- int err = timer->hw.open(timer);
++ err = timer->hw.open(timer);
+ if (err) {
+ kfree(timeri->owner);
+ kfree(timeri);
++ timeri = NULL;
+
+ if (timer->card)
+- put_device(&timer->card->card_dev);
++ card_dev_to_put = &timer->card->card_dev;
+ module_put(timer->module);
+- mutex_unlock(®ister_mutex);
+- return err;
++ goto unlock;
+ }
+ }
+
+ list_add_tail(&timeri->open_list, &timer->open_list_head);
+- snd_timer_check_master(timeri);
++ timer->num_instances++;
++ err = snd_timer_check_master(timeri);
++ if (err < 0) {
++ snd_timer_close_locked(timeri, &card_dev_to_put);
++ timeri = NULL;
++ }
++
++ unlock:
+ mutex_unlock(®ister_mutex);
++ /* put_device() is called after unlock for avoiding deadlock */
++ if (card_dev_to_put)
++ put_device(card_dev_to_put);
+ *ti = timeri;
+- return 0;
++ return err;
+ }
++EXPORT_SYMBOL(snd_timer_open);
+
+ /*
+ * close a timer instance
++ * call this with register_mutex down.
+ */
+-int snd_timer_close(struct snd_timer_instance *timeri)
++static int snd_timer_close_locked(struct snd_timer_instance *timeri,
++ struct device **card_devp_to_put)
+ {
+ struct snd_timer *timer = NULL;
+ struct snd_timer_instance *slave, *tmp;
+
+- if (snd_BUG_ON(!timeri))
+- return -ENXIO;
+-
+- mutex_lock(®ister_mutex);
+ list_del(&timeri->open_list);
+
+ /* force to stop the timer */
+@@ -338,6 +369,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
+
+ timer = timeri->timer;
+ if (timer) {
++ timer->num_instances--;
+ /* wait, until the active callback is finished */
+ spin_lock_irq(&timer->lock);
+ while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
+@@ -353,6 +385,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
+ list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
+ open_list) {
+ list_move_tail(&slave->open_list, &snd_timer_slave_list);
++ timer->num_instances--;
+ slave->master = NULL;
+ slave->timer = NULL;
+ list_del_init(&slave->ack_list);
+@@ -376,14 +409,34 @@ int snd_timer_close(struct snd_timer_instance *timeri)
+ timer->hw.close(timer);
+ /* release a card refcount for safe disconnection */
+ if (timer->card)
+- put_device(&timer->card->card_dev);
++ *card_devp_to_put = &timer->card->card_dev;
+ module_put(timer->module);
+ }
+
+- mutex_unlock(®ister_mutex);
+ return 0;
+ }
+
++/*
++ * close a timer instance
++ */
++int snd_timer_close(struct snd_timer_instance *timeri)
++{
++ struct device *card_dev_to_put = NULL;
++ int err;
++
++ if (snd_BUG_ON(!timeri))
++ return -ENXIO;
++
++ mutex_lock(®ister_mutex);
++ err = snd_timer_close_locked(timeri, &card_dev_to_put);
++ mutex_unlock(®ister_mutex);
++ /* put_device() is called after unlock for avoiding deadlock */
++ if (card_dev_to_put)
++ put_device(card_dev_to_put);
++ return err;
++}
++EXPORT_SYMBOL(snd_timer_close);
++
+ unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)
+ {
+ struct snd_timer * timer;
+@@ -397,6 +450,7 @@ unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)
+ }
+ return 0;
+ }
++EXPORT_SYMBOL(snd_timer_resolution);
+
+ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
+ {
+@@ -588,6 +642,7 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
+ else
+ return snd_timer_start1(timeri, true, ticks);
+ }
++EXPORT_SYMBOL(snd_timer_start);
+
+ /*
+ * stop the timer instance.
+@@ -601,6 +656,7 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
+ else
+ return snd_timer_stop1(timeri, true);
+ }
++EXPORT_SYMBOL(snd_timer_stop);
+
+ /*
+ * start again.. the tick is kept.
+@@ -616,6 +672,7 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
+ else
+ return snd_timer_start1(timeri, false, 0);
+ }
++EXPORT_SYMBOL(snd_timer_continue);
+
+ /*
+ * pause.. remember the ticks left
+@@ -627,6 +684,7 @@ int snd_timer_pause(struct snd_timer_instance * timeri)
+ else
+ return snd_timer_stop1(timeri, false);
+ }
++EXPORT_SYMBOL(snd_timer_pause);
+
+ /*
+ * reschedule the timer
+@@ -808,6 +866,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
+ if (use_tasklet)
+ tasklet_schedule(&timer->task_queue);
+ }
++EXPORT_SYMBOL(snd_timer_interrupt);
+
+ /*
+
+@@ -846,6 +905,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
+ spin_lock_init(&timer->lock);
+ tasklet_init(&timer->task_queue, snd_timer_tasklet,
+ (unsigned long)timer);
++ timer->max_instances = 1000; /* default limit per timer */
+ if (card != NULL) {
+ timer->module = card->module;
+ err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops);
+@@ -858,6 +918,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
+ *rtimer = timer;
+ return 0;
+ }
++EXPORT_SYMBOL(snd_timer_new);
+
+ static int snd_timer_free(struct snd_timer *timer)
+ {
+@@ -977,6 +1038,7 @@ void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstam
+ }
+ spin_unlock_irqrestore(&timer->lock, flags);
+ }
++EXPORT_SYMBOL(snd_timer_notify);
+
+ /*
+ * exported functions for global timers
+@@ -992,11 +1054,13 @@ int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer)
+ tid.subdevice = 0;
+ return snd_timer_new(NULL, id, &tid, rtimer);
+ }
++EXPORT_SYMBOL(snd_timer_global_new);
+
+ int snd_timer_global_free(struct snd_timer *timer)
+ {
+ return snd_timer_free(timer);
+ }
++EXPORT_SYMBOL(snd_timer_global_free);
+
+ int snd_timer_global_register(struct snd_timer *timer)
+ {
+@@ -1006,6 +1070,7 @@ int snd_timer_global_register(struct snd_timer *timer)
+ dev.device_data = timer;
+ return snd_timer_dev_register(&dev);
+ }
++EXPORT_SYMBOL(snd_timer_global_register);
+
+ /*
+ * System timer
+@@ -2121,17 +2186,3 @@ static void __exit alsa_timer_exit(void)
+
+ module_init(alsa_timer_init)
+ module_exit(alsa_timer_exit)
+-
+-EXPORT_SYMBOL(snd_timer_open);
+-EXPORT_SYMBOL(snd_timer_close);
+-EXPORT_SYMBOL(snd_timer_resolution);
+-EXPORT_SYMBOL(snd_timer_start);
+-EXPORT_SYMBOL(snd_timer_stop);
+-EXPORT_SYMBOL(snd_timer_continue);
+-EXPORT_SYMBOL(snd_timer_pause);
+-EXPORT_SYMBOL(snd_timer_new);
+-EXPORT_SYMBOL(snd_timer_notify);
+-EXPORT_SYMBOL(snd_timer_global_new);
+-EXPORT_SYMBOL(snd_timer_global_free);
+-EXPORT_SYMBOL(snd_timer_global_register);
+-EXPORT_SYMBOL(snd_timer_interrupt);
+diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
+index 4d3034a68bdf..be2c056eb62d 100644
+--- a/sound/firewire/bebob/bebob_stream.c
++++ b/sound/firewire/bebob/bebob_stream.c
+@@ -253,8 +253,7 @@ end:
+ return err;
+ }
+
+-static unsigned int
+-map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s)
++static int map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s)
+ {
+ unsigned int sec, sections, ch, channels;
+ unsigned int pcm, midi, location;
+diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
+index 433f3280f709..00c6af2ae1c2 100644
+--- a/sound/hda/hdac_controller.c
++++ b/sound/hda/hdac_controller.c
+@@ -441,8 +441,6 @@ static void azx_int_disable(struct hdac_bus *bus)
+ list_for_each_entry(azx_dev, &bus->stream_list, list)
+ snd_hdac_stream_updateb(azx_dev, SD_CTL, SD_INT_MASK, 0);
+
+- synchronize_irq(bus->irq);
+-
+ /* disable SIE for all streams */
+ snd_hdac_chip_writeb(bus, INTCTL, 0);
+
+diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
+index 3d4ea5fd75bf..f2f1d9fd848c 100644
+--- a/sound/pci/hda/hda_intel.c
++++ b/sound/pci/hda/hda_intel.c
+@@ -1239,9 +1239,9 @@ static int azx_free(struct azx *chip)
+ }
+
+ if (bus->chip_init) {
+- azx_stop_chip(chip);
+ azx_clear_irq_pending(chip);
+ azx_stop_all_streams(chip);
++ azx_stop_chip(chip);
+ }
+
+ if (bus->irq >= 0)
+diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
+index 016d12af6877..0619054bd7a0 100644
+--- a/tools/perf/pmu-events/jevents.c
++++ b/tools/perf/pmu-events/jevents.c
+@@ -311,12 +311,12 @@ static struct fixed {
+ const char *name;
+ const char *event;
+ } fixed[] = {
+- { "inst_retired.any", "event=0xc0" },
+- { "inst_retired.any_p", "event=0xc0" },
+- { "cpu_clk_unhalted.ref", "event=0x0,umask=0x03" },
+- { "cpu_clk_unhalted.thread", "event=0x3c" },
+- { "cpu_clk_unhalted.core", "event=0x3c" },
+- { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" },
++ { "inst_retired.any", "event=0xc0,period=2000003" },
++ { "inst_retired.any_p", "event=0xc0,period=2000003" },
++ { "cpu_clk_unhalted.ref", "event=0x0,umask=0x03,period=2000003" },
++ { "cpu_clk_unhalted.thread", "event=0x3c,period=2000003" },
++ { "cpu_clk_unhalted.core", "event=0x3c,period=2000003" },
++ { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1,period=2000003" },
+ { NULL, NULL},
+ };
+
+diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
+index c662fef95d14..df6892596dc2 100644
+--- a/tools/perf/util/map.c
++++ b/tools/perf/util/map.c
+@@ -1,4 +1,5 @@
+ #include "symbol.h"
++#include <assert.h>
+ #include <errno.h>
+ #include <inttypes.h>
+ #include <limits.h>
+@@ -716,6 +717,8 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
+ }
+
+ after->start = map->end;
++ after->pgoff += map->end - pos->start;
++ assert(pos->map_ip(pos, map->end) == after->map_ip(after, map->end));
+ __map_groups__insert(pos->groups, after);
+ if (verbose >= 2)
+ map__fprintf(after, fp);
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