diff options
| -rw-r--r-- | 0000_README | 4 | ||||
| -rw-r--r-- | 1294_linux-4.4.295.patch | 1346 |
2 files changed, 1350 insertions, 0 deletions
diff --git a/0000_README b/0000_README index 3abdd816..e68fc753 100644 --- a/0000_README +++ b/0000_README @@ -1219,6 +1219,10 @@ Patch: 1293_linux-4.4.294.patc From: http://www.kernel.org Desc: Linux 4.4.294 +Patch: 1294_linux-4.4.295.patc +From: http://www.kernel.org +Desc: Linux 4.4.295 + 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/1294_linux-4.4.295.patch b/1294_linux-4.4.295.patch new file mode 100644 index 00000000..9acdbce7 --- /dev/null +++ b/1294_linux-4.4.295.patch @@ -0,0 +1,1346 @@ +diff --git a/Makefile b/Makefile +index 736ee5fc5f24f..b2a9f72ab8000 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,6 +1,6 @@ + VERSION = 4 + PATCHLEVEL = 4 +-SUBLEVEL = 294 ++SUBLEVEL = 295 + EXTRAVERSION = + NAME = Blurry Fish Butt + +diff --git a/block/ioprio.c b/block/ioprio.c +index 01b8116298a13..284bdfa3aacfc 100644 +--- a/block/ioprio.c ++++ b/block/ioprio.c +@@ -202,6 +202,7 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) + pgrp = task_pgrp(current); + else + pgrp = find_vpid(who); ++ read_lock(&tasklist_lock); + do_each_pid_thread(pgrp, PIDTYPE_PGID, p) { + tmpio = get_task_ioprio(p); + if (tmpio < 0) +@@ -211,6 +212,8 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) + else + ret = ioprio_best(ret, tmpio); + } while_each_pid_thread(pgrp, PIDTYPE_PGID, p); ++ read_unlock(&tasklist_lock); ++ + break; + case IOPRIO_WHO_USER: + uid = make_kuid(current_user_ns(), who); +diff --git a/drivers/android/binder.c b/drivers/android/binder.c +index 951dd66ee47fd..9ccb109410c42 100644 +--- a/drivers/android/binder.c ++++ b/drivers/android/binder.c +@@ -2623,21 +2623,18 @@ static int binder_free_thread(struct binder_proc *proc, + } + + /* +- * If this thread used poll, make sure we remove the waitqueue +- * from any epoll data structures holding it with POLLFREE. +- * waitqueue_active() is safe to use here because we're holding +- * the global lock. ++ * If this thread used poll, make sure we remove the waitqueue from any ++ * poll data structures holding it. + */ +- if ((thread->looper & BINDER_LOOPER_STATE_POLL) && +- waitqueue_active(&thread->wait)) { +- wake_up_poll(&thread->wait, POLLHUP | POLLFREE); +- } ++ if (thread->looper & BINDER_LOOPER_STATE_POLL) ++ wake_up_pollfree(&thread->wait); + + /* +- * This is needed to avoid races between wake_up_poll() above and +- * and ep_remove_waitqueue() called for other reasons (eg the epoll file +- * descriptor being closed); ep_remove_waitqueue() holds an RCU read +- * lock, so we can be sure it's done after calling synchronize_rcu(). ++ * This is needed to avoid races between wake_up_pollfree() above and ++ * someone else removing the last entry from the queue for other reasons ++ * (e.g. ep_remove_wait_queue() being called due to an epoll file ++ * descriptor being closed). Such other users hold an RCU read lock, so ++ * we can be sure they're done after we call synchronize_rcu(). + */ + if (thread->looper & BINDER_LOOPER_STATE_POLL) + synchronize_rcu(); +diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c +index 7120da5a03f3e..6144383ec8bc8 100644 +--- a/drivers/ata/libata-core.c ++++ b/drivers/ata/libata-core.c +@@ -4153,6 +4153,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { + { " 2GB ATA Flash Disk", "ADMA428M", ATA_HORKAGE_NODMA }, + /* Odd clown on sil3726/4726 PMPs */ + { "Config Disk", NULL, ATA_HORKAGE_DISABLE }, ++ /* Similar story with ASMedia 1092 */ ++ { "ASMT109x- Config", NULL, ATA_HORKAGE_DISABLE }, + + /* Weird ATAPI devices */ + { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 }, +diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig +index 2729ab3557bb8..fdbb7b8d347c9 100644 +--- a/drivers/hid/Kconfig ++++ b/drivers/hid/Kconfig +@@ -166,14 +166,14 @@ config HID_CHERRY + + config HID_CHICONY + tristate "Chicony devices" +- depends on HID ++ depends on USB_HID + default !EXPERT + ---help--- + Support for Chicony Tactical pad and special keys on Chicony keyboards. + + config HID_CORSAIR + tristate "Corsair devices" +- depends on HID && USB && LEDS_CLASS ++ depends on USB_HID && LEDS_CLASS + ---help--- + Support for Corsair devices that are not fully compliant with the + HID standard. +@@ -183,7 +183,7 @@ config HID_CORSAIR + + config HID_PRODIKEYS + tristate "Prodikeys PC-MIDI Keyboard support" +- depends on HID && SND ++ depends on USB_HID && SND + select SND_RAWMIDI + ---help--- + Support for Prodikeys PC-MIDI Keyboard device support. +@@ -389,7 +389,7 @@ config HID_LENOVO + + config HID_LOGITECH + tristate "Logitech devices" +- depends on HID ++ depends on USB_HID + default !EXPERT + ---help--- + Support for Logitech devices that are not fully compliant with HID standard. +@@ -693,7 +693,7 @@ config HID_SAITEK + + config HID_SAMSUNG + tristate "Samsung InfraRed remote control or keyboards" +- depends on HID ++ depends on USB_HID + ---help--- + Support for Samsung InfraRed remote control or keyboards. + +diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c +index f04ed9aabc3f9..f11948ddf642e 100644 +--- a/drivers/hid/hid-chicony.c ++++ b/drivers/hid/hid-chicony.c +@@ -61,8 +61,12 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, + static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) + { +- struct usb_interface *intf = to_usb_interface(hdev->dev.parent); +- ++ struct usb_interface *intf; ++ ++ if (!hid_is_usb(hdev)) ++ return rdesc; ++ ++ intf = to_usb_interface(hdev->dev.parent); + if (intf->cur_altsetting->desc.bInterfaceNumber == 1) { + /* Change usage maximum and logical maximum from 0x7fff to + * 0x2fff, so they don't exceed HID_MAX_USAGES */ +diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c +index 88be56321610a..0f429034f2053 100644 +--- a/drivers/hid/hid-corsair.c ++++ b/drivers/hid/hid-corsair.c +@@ -551,7 +551,12 @@ static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id) + int ret; + unsigned long quirks = id->driver_data; + struct corsair_drvdata *drvdata; +- struct usb_interface *usbif = to_usb_interface(dev->dev.parent); ++ struct usb_interface *usbif; ++ ++ if (!hid_is_usb(dev)) ++ return -EINVAL; ++ ++ usbif = to_usb_interface(dev->dev.parent); + + drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata), + GFP_KERNEL); +diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c +index 5eea6fe0d7bd8..c3ecac13e6203 100644 +--- a/drivers/hid/hid-elo.c ++++ b/drivers/hid/hid-elo.c +@@ -230,6 +230,9 @@ static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id) + struct elo_priv *priv; + int ret; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; +diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c +index ab9da597106fa..2f8eb66397444 100644 +--- a/drivers/hid/hid-holtek-kbd.c ++++ b/drivers/hid/hid-holtek-kbd.c +@@ -143,12 +143,17 @@ static int holtek_kbd_input_event(struct input_dev *dev, unsigned int type, + static int holtek_kbd_probe(struct hid_device *hdev, + const struct hid_device_id *id) + { +- struct usb_interface *intf = to_usb_interface(hdev->dev.parent); +- int ret = hid_parse(hdev); ++ struct usb_interface *intf; ++ int ret; ++ ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; + ++ ret = hid_parse(hdev); + if (!ret) + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + ++ intf = to_usb_interface(hdev->dev.parent); + if (!ret && intf->cur_altsetting->desc.bInterfaceNumber == 1) { + struct hid_input *hidinput; + list_for_each_entry(hidinput, &hdev->inputs, list) { +diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c +index 78b3a0c767751..27c08ddab0e1a 100644 +--- a/drivers/hid/hid-holtek-mouse.c ++++ b/drivers/hid/hid-holtek-mouse.c +@@ -65,6 +65,14 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, + return rdesc; + } + ++static int holtek_mouse_probe(struct hid_device *hdev, ++ const struct hid_device_id *id) ++{ ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ return 0; ++} ++ + static const struct hid_device_id holtek_mouse_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, + USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, +@@ -86,6 +94,7 @@ static struct hid_driver holtek_mouse_driver = { + .name = "holtek_mouse", + .id_table = holtek_mouse_devices, + .report_fixup = holtek_mouse_report_fixup, ++ .probe = holtek_mouse_probe, + }; + + module_hid_driver(holtek_mouse_driver); +diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c +index 0fd9fc135f3d9..c77e2303ba3e6 100644 +--- a/drivers/hid/hid-lg.c ++++ b/drivers/hid/hid-lg.c +@@ -659,12 +659,18 @@ static int lg_event(struct hid_device *hdev, struct hid_field *field, + + static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id) + { +- struct usb_interface *iface = to_usb_interface(hdev->dev.parent); +- __u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber; ++ struct usb_interface *iface; ++ __u8 iface_num; + unsigned int connect_mask = HID_CONNECT_DEFAULT; + struct lg_drv_data *drv_data; + int ret; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ ++ iface = to_usb_interface(hdev->dev.parent); ++ iface_num = iface->cur_altsetting->desc.bInterfaceNumber; ++ + /* G29 only work with the 1st interface */ + if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) && + (iface_num != 0)) { +diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c +index cba15edd47c2a..e708152d3ea03 100644 +--- a/drivers/hid/hid-prodikeys.c ++++ b/drivers/hid/hid-prodikeys.c +@@ -803,12 +803,18 @@ static int pk_raw_event(struct hid_device *hdev, struct hid_report *report, + static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id) + { + int ret; +- struct usb_interface *intf = to_usb_interface(hdev->dev.parent); +- unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber; ++ struct usb_interface *intf; ++ unsigned short ifnum; + unsigned long quirks = id->driver_data; + struct pk_device *pk; + struct pcmidi_snd *pm = NULL; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ ++ intf = to_usb_interface(hdev->dev.parent); ++ ifnum = intf->cur_altsetting->desc.bInterfaceNumber; ++ + pk = kzalloc(sizeof(*pk), GFP_KERNEL); + if (pk == NULL) { + hid_err(hdev, "can't alloc descriptor\n"); +diff --git a/drivers/hid/hid-roccat-arvo.c b/drivers/hid/hid-roccat-arvo.c +index 1948208fe0380..58ab1d878a949 100644 +--- a/drivers/hid/hid-roccat-arvo.c ++++ b/drivers/hid/hid-roccat-arvo.c +@@ -349,6 +349,9 @@ static int arvo_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c +index bc62ed91e451c..529dcc51a2beb 100644 +--- a/drivers/hid/hid-roccat-isku.c ++++ b/drivers/hid/hid-roccat-isku.c +@@ -329,6 +329,9 @@ static int isku_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c +index 6c2b821c8d8b5..227504764c2f8 100644 +--- a/drivers/hid/hid-roccat-kone.c ++++ b/drivers/hid/hid-roccat-kone.c +@@ -756,6 +756,9 @@ static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id) + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c +index 5e99fcdc71b9c..3403cc528f4e9 100644 +--- a/drivers/hid/hid-roccat-koneplus.c ++++ b/drivers/hid/hid-roccat-koneplus.c +@@ -438,6 +438,9 @@ static int koneplus_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-konepure.c b/drivers/hid/hid-roccat-konepure.c +index 07de2f9014c67..ef9508822e5f0 100644 +--- a/drivers/hid/hid-roccat-konepure.c ++++ b/drivers/hid/hid-roccat-konepure.c +@@ -136,6 +136,9 @@ static int konepure_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c +index 1073c0d1fae59..549b15ef79b94 100644 +--- a/drivers/hid/hid-roccat-kovaplus.c ++++ b/drivers/hid/hid-roccat-kovaplus.c +@@ -508,6 +508,9 @@ static int kovaplus_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c +index 65e2e76bf2fe5..6a8dc17cddf20 100644 +--- a/drivers/hid/hid-roccat-lua.c ++++ b/drivers/hid/hid-roccat-lua.c +@@ -163,6 +163,9 @@ static int lua_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c +index 47d7e74231e5a..4fed4b899da25 100644 +--- a/drivers/hid/hid-roccat-pyra.c ++++ b/drivers/hid/hid-roccat-pyra.c +@@ -457,6 +457,9 @@ static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id) + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-ryos.c b/drivers/hid/hid-roccat-ryos.c +index 47cc8f30ff6d4..fda4a396a12e8 100644 +--- a/drivers/hid/hid-roccat-ryos.c ++++ b/drivers/hid/hid-roccat-ryos.c +@@ -144,6 +144,9 @@ static int ryos_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c +index 6dbf6e04dce75..0230fb54f08a5 100644 +--- a/drivers/hid/hid-roccat-savu.c ++++ b/drivers/hid/hid-roccat-savu.c +@@ -116,6 +116,9 @@ static int savu_probe(struct hid_device *hdev, + { + int retval; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + retval = hid_parse(hdev); + if (retval) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c +index 7cbb067d4a9e3..89bb2260367f3 100644 +--- a/drivers/hid/hid-samsung.c ++++ b/drivers/hid/hid-samsung.c +@@ -157,6 +157,9 @@ static int samsung_probe(struct hid_device *hdev, + int ret; + unsigned int cmask = HID_CONNECT_DEFAULT; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "parse failed\n"); +diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c +index 85ac43517e3ff..4cf0aaad56198 100644 +--- a/drivers/hid/hid-uclogic.c ++++ b/drivers/hid/hid-uclogic.c +@@ -795,6 +795,9 @@ static int uclogic_tablet_enable(struct hid_device *hdev) + __u8 *p; + s32 v; + ++ if (!hid_is_usb(hdev)) ++ return -EINVAL; ++ + /* + * Read string descriptor containing tablet parameters. The specific + * string descriptor and data were discovered by sniffing the Windows +diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c +index 4248d253c32ad..bd087e849090b 100644 +--- a/drivers/hid/i2c-hid/i2c-hid.c ++++ b/drivers/hid/i2c-hid/i2c-hid.c +@@ -789,7 +789,7 @@ static int i2c_hid_power(struct hid_device *hid, int lvl) + return 0; + } + +-static struct hid_ll_driver i2c_hid_ll_driver = { ++struct hid_ll_driver i2c_hid_ll_driver = { + .parse = i2c_hid_parse, + .start = i2c_hid_start, + .stop = i2c_hid_stop, +@@ -799,6 +799,7 @@ static struct hid_ll_driver i2c_hid_ll_driver = { + .output_report = i2c_hid_output_report, + .raw_request = i2c_hid_raw_request, + }; ++EXPORT_SYMBOL_GPL(i2c_hid_ll_driver); + + static int i2c_hid_init_irq(struct i2c_client *client) + { +diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c +index a7ba4db8cff72..cbcaf5e8c624a 100644 +--- a/drivers/hid/uhid.c ++++ b/drivers/hid/uhid.c +@@ -372,7 +372,7 @@ static int uhid_hid_output_report(struct hid_device *hid, __u8 *buf, + return uhid_hid_output_raw(hid, buf, count, HID_OUTPUT_REPORT); + } + +-static struct hid_ll_driver uhid_hid_driver = { ++struct hid_ll_driver uhid_hid_driver = { + .start = uhid_hid_start, + .stop = uhid_hid_stop, + .open = uhid_hid_open, +@@ -381,6 +381,7 @@ static struct hid_ll_driver uhid_hid_driver = { + .raw_request = uhid_hid_raw_request, + .output_report = uhid_hid_output_report, + }; ++EXPORT_SYMBOL_GPL(uhid_hid_driver); + + #ifdef CONFIG_COMPAT + +diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c +index c7da6ec4d923d..90f6aa9d5eb3e 100644 +--- a/drivers/hid/usbhid/hid-core.c ++++ b/drivers/hid/usbhid/hid-core.c +@@ -1272,7 +1272,7 @@ static int usbhid_idle(struct hid_device *hid, int report, int idle, + return hid_set_idle(dev, ifnum, report, idle); + } + +-static struct hid_ll_driver usb_hid_driver = { ++struct hid_ll_driver usb_hid_driver = { + .parse = usbhid_parse, + .start = usbhid_start, + .stop = usbhid_stop, +@@ -1285,6 +1285,7 @@ static struct hid_ll_driver usb_hid_driver = { + .output_report = usbhid_output_report, + .idle = usbhid_idle, + }; ++EXPORT_SYMBOL_GPL(usb_hid_driver); + + static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id) + { +diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c +index e06af5b9f59e8..00afff48aaec8 100644 +--- a/drivers/hid/wacom_sys.c ++++ b/drivers/hid/wacom_sys.c +@@ -458,7 +458,7 @@ static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, + * Skip the query for this type and modify defaults based on + * interface number. + */ +- if (features->type == WIRELESS) { ++ if (features->type == WIRELESS && intf) { + if (intf->cur_altsetting->desc.bInterfaceNumber == 0) + features->device_type = WACOM_DEVICETYPE_WL_MONITOR; + else +@@ -1512,6 +1512,9 @@ static void wacom_wireless_work(struct work_struct *work) + + wacom_destroy_battery(wacom); + ++ if (!usbdev) ++ return; ++ + /* Stylus interface */ + hdev1 = usb_get_intfdata(usbdev->config->interface[1]); + wacom1 = hid_get_drvdata(hdev1); +@@ -1689,8 +1692,6 @@ static void wacom_update_name(struct wacom *wacom) + static int wacom_probe(struct hid_device *hdev, + const struct hid_device_id *id) + { +- struct usb_interface *intf = to_usb_interface(hdev->dev.parent); +- struct usb_device *dev = interface_to_usbdev(intf); + struct wacom *wacom; + struct wacom_wac *wacom_wac; + struct wacom_features *features; +@@ -1733,8 +1734,14 @@ static int wacom_probe(struct hid_device *hdev, + goto fail_type; + } + +- wacom->usbdev = dev; +- wacom->intf = intf; ++ if (hid_is_usb(hdev)) { ++ struct usb_interface *intf = to_usb_interface(hdev->dev.parent); ++ struct usb_device *dev = interface_to_usbdev(intf); ++ ++ wacom->usbdev = dev; ++ wacom->intf = intf; ++ } ++ + mutex_init(&wacom->lock); + INIT_WORK(&wacom->work, wacom_wireless_work); + +diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c +index 0667b2875ee42..d139073ea48f0 100644 +--- a/drivers/iio/accel/kxcjk-1013.c ++++ b/drivers/iio/accel/kxcjk-1013.c +@@ -1284,8 +1284,7 @@ static int kxcjk1013_probe(struct i2c_client *client, + err_iio_unregister: + iio_device_unregister(indio_dev); + err_buffer_cleanup: +- if (data->dready_trig) +- iio_triggered_buffer_cleanup(indio_dev); ++ iio_triggered_buffer_cleanup(indio_dev); + err_trigger_unregister: + if (data->dready_trig) + iio_trigger_unregister(data->dready_trig); +@@ -1308,8 +1307,8 @@ static int kxcjk1013_remove(struct i2c_client *client) + + iio_device_unregister(indio_dev); + ++ iio_triggered_buffer_cleanup(indio_dev); + if (data->dready_trig) { +- iio_triggered_buffer_cleanup(indio_dev); + iio_trigger_unregister(data->dready_trig); + iio_trigger_unregister(data->motion_trig); + } +diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c +index d44c1b3a131cf..cc9b9344e2081 100644 +--- a/drivers/iio/accel/mma8452.c ++++ b/drivers/iio/accel/mma8452.c +@@ -1011,7 +1011,7 @@ static int mma8452_trigger_setup(struct iio_dev *indio_dev) + if (ret) + return ret; + +- indio_dev->trig = trig; ++ indio_dev->trig = iio_trigger_get(trig); + + return 0; + } +diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c +index e04483254b283..7157b1a731a60 100644 +--- a/drivers/iio/gyro/itg3200_buffer.c ++++ b/drivers/iio/gyro/itg3200_buffer.c +@@ -64,9 +64,9 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p) + + iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp); + ++error_ret: + iio_trigger_notify_done(indio_dev->trig); + +-error_ret: + return IRQ_HANDLED; + } + +diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c +index 111552b336fe0..26bd0983fa065 100644 +--- a/drivers/iio/light/ltr501.c ++++ b/drivers/iio/light/ltr501.c +@@ -1248,7 +1248,7 @@ static irqreturn_t ltr501_trigger_handler(int irq, void *p) + ret = regmap_bulk_read(data->regmap, LTR501_ALS_DATA1, + (u8 *)als_buf, sizeof(als_buf)); + if (ret < 0) +- return ret; ++ goto done; + if (test_bit(0, indio_dev->active_scan_mask)) + scan.channels[j++] = le16_to_cpu(als_buf[1]); + if (test_bit(1, indio_dev->active_scan_mask)) +diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c +index 42d334ba612ea..8197af263b809 100644 +--- a/drivers/iio/light/stk3310.c ++++ b/drivers/iio/light/stk3310.c +@@ -547,9 +547,8 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private) + mutex_lock(&data->lock); + ret = regmap_field_read(data->reg_flag_nf, &dir); + if (ret < 0) { +- dev_err(&data->client->dev, "register read failed\n"); +- mutex_unlock(&data->lock); +- return ret; ++ dev_err(&data->client->dev, "register read failed: %d\n", ret); ++ goto out; + } + event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, + IIO_EV_TYPE_THRESH, +@@ -561,6 +560,7 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private) + ret = regmap_field_write(data->reg_flag_psint, 0); + if (ret < 0) + dev_err(&data->client->dev, "failed to reset interrupts\n"); ++out: + mutex_unlock(&data->lock); + + return IRQ_HANDLED; +diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c +index d4ae43f71e723..fee7c6f3e9710 100644 +--- a/drivers/irqchip/irq-gic-v3-its.c ++++ b/drivers/irqchip/irq-gic-v3-its.c +@@ -356,7 +356,7 @@ static struct its_collection *its_build_invall_cmd(struct its_cmd_block *cmd, + + its_fixup_cmd(cmd); + +- return NULL; ++ return desc->its_invall_cmd.col; + } + + static u64 its_cmd_ptr_to_offset(struct its_node *its, +diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c +index b1777104fd9fe..9694529b709de 100644 +--- a/drivers/irqchip/irq-nvic.c ++++ b/drivers/irqchip/irq-nvic.c +@@ -29,7 +29,7 @@ + + #define NVIC_ISER 0x000 + #define NVIC_ICER 0x080 +-#define NVIC_IPR 0x300 ++#define NVIC_IPR 0x400 + + #define NVIC_MAX_BANKS 16 + /* +diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c +index c1317889d3d8d..ced11ea892698 100644 +--- a/drivers/net/can/pch_can.c ++++ b/drivers/net/can/pch_can.c +@@ -703,11 +703,11 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 obj_num, int quota) + cf->data[i + 1] = data_reg >> 8; + } + +- netif_receive_skb(skb); + rcv_pkts++; + stats->rx_packets++; + quota--; + stats->rx_bytes += cf->can_dlc; ++ netif_receive_skb(skb); + + pch_fifo_thresh(priv, obj_num); + obj_num++; +diff --git a/drivers/net/can/sja1000/ems_pcmcia.c b/drivers/net/can/sja1000/ems_pcmcia.c +index 381de998d2f16..fef5c59c0f4ca 100644 +--- a/drivers/net/can/sja1000/ems_pcmcia.c ++++ b/drivers/net/can/sja1000/ems_pcmcia.c +@@ -243,7 +243,12 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base) + free_sja1000dev(dev); + } + +- err = request_irq(dev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, ++ if (!card->channels) { ++ err = -ENODEV; ++ goto failure_cleanup; ++ } ++ ++ err = request_irq(pdev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, + DRV_NAME, card); + if (!err) + return 0; +diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c +index bb51f124d8c7d..dbd5cbc0a0a99 100644 +--- a/drivers/net/ethernet/altera/altera_tse_main.c ++++ b/drivers/net/ethernet/altera/altera_tse_main.c +@@ -1383,16 +1383,19 @@ static int altera_tse_probe(struct platform_device *pdev) + priv->rxdescmem_busaddr = dma_res->start; + + } else { ++ ret = -ENODEV; + goto err_free_netdev; + } + +- if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) ++ if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) { + dma_set_coherent_mask(priv->device, + DMA_BIT_MASK(priv->dmaops->dmamask)); +- else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) ++ } else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) { + dma_set_coherent_mask(priv->device, DMA_BIT_MASK(32)); +- else ++ } else { ++ ret = -EIO; + goto err_free_netdev; ++ } + + /* MAC address space */ + ret = request_and_map(pdev, "control_port", &control_port, +diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h +index 99d33e2d35e6c..7bbf85e98974a 100644 +--- a/drivers/net/ethernet/freescale/fec.h ++++ b/drivers/net/ethernet/freescale/fec.h +@@ -360,6 +360,9 @@ struct bufdesc_ex { + #define FEC_ENET_WAKEUP ((uint)0x00020000) /* Wakeup request */ + #define FEC_ENET_TXF (FEC_ENET_TXF_0 | FEC_ENET_TXF_1 | FEC_ENET_TXF_2) + #define FEC_ENET_RXF (FEC_ENET_RXF_0 | FEC_ENET_RXF_1 | FEC_ENET_RXF_2) ++#define FEC_ENET_RXF_GET(X) (((X) == 0) ? FEC_ENET_RXF_0 : \ ++ (((X) == 1) ? FEC_ENET_RXF_1 : \ ++ FEC_ENET_RXF_2)) + #define FEC_ENET_TS_AVAIL ((uint)0x00010000) + #define FEC_ENET_TS_TIMER ((uint)0x00008000) + +diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c +index 9c608211fcfd9..61ab471de4bb3 100644 +--- a/drivers/net/ethernet/freescale/fec_main.c ++++ b/drivers/net/ethernet/freescale/fec_main.c +@@ -1407,7 +1407,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) + if ((status & BD_ENET_RX_LAST) == 0) + netdev_err(ndev, "rcv is not +last\n"); + +- writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT); ++ writel(FEC_ENET_RXF_GET(queue_id), fep->hwp + FEC_IEVENT); + + /* Check for errors. */ + if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO | +diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c +index cb9d43c871c4c..147effc16316f 100644 +--- a/drivers/net/ethernet/qlogic/qla3xxx.c ++++ b/drivers/net/ethernet/qlogic/qla3xxx.c +@@ -3491,20 +3491,19 @@ static int ql_adapter_up(struct ql3_adapter *qdev) + + spin_lock_irqsave(&qdev->hw_lock, hw_flags); + +- err = ql_wait_for_drvr_lock(qdev); +- if (err) { +- err = ql_adapter_initialize(qdev); +- if (err) { +- netdev_err(ndev, "Unable to initialize adapter\n"); +- goto err_init; +- } +- netdev_err(ndev, "Releasing driver lock\n"); +- ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); +- } else { ++ if (!ql_wait_for_drvr_lock(qdev)) { + netdev_err(ndev, "Could not acquire driver lock\n"); ++ err = -ENODEV; + goto err_lock; + } + ++ err = ql_adapter_initialize(qdev); ++ if (err) { ++ netdev_err(ndev, "Unable to initialize adapter\n"); ++ goto err_init; ++ } ++ ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); ++ + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); + + set_bit(QL_ADAPTER_UP, &qdev->flags); +diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c +index 8bef8c3dd2a3e..2c9e4ab99fe0d 100644 +--- a/drivers/net/usb/cdc_ncm.c ++++ b/drivers/net/usb/cdc_ncm.c +@@ -175,6 +175,8 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) + /* clamp new_tx to sane values */ + min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth16); + max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)); ++ if (max == 0) ++ max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */ + + /* some devices set dwNtbOutMaxSize too low for the above default */ + min = min(min, max); +diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c +index eca8d04cfb3ec..9bd380a84d5b6 100644 +--- a/drivers/usb/core/config.c ++++ b/drivers/usb/core/config.c +@@ -375,7 +375,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, + * the USB-2 spec requires such endpoints to have wMaxPacketSize = 0 + * (see the end of section 5.6.3), so don't warn about them. + */ +- maxp = usb_endpoint_maxp(&endpoint->desc); ++ maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize); + if (maxp == 0 && !(usb_endpoint_xfer_isoc(d) && asnum == 0)) { + dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid wMaxPacketSize 0\n", + cfgno, inum, asnum, d->bEndpointAddress); +diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c +index bb72d55a58b5a..1f584d15a3ca4 100644 +--- a/drivers/usb/gadget/composite.c ++++ b/drivers/usb/gadget/composite.c +@@ -1484,6 +1484,18 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) + struct usb_function *f = NULL; + u8 endp; + ++ if (w_length > USB_COMP_EP0_BUFSIZ) { ++ if (ctrl->bRequestType == USB_DIR_OUT) { ++ goto done; ++ } else { ++ /* Cast away the const, we are going to overwrite on purpose. */ ++ __le16 *temp = (__le16 *)&ctrl->wLength; ++ ++ *temp = cpu_to_le16(USB_COMP_EP0_BUFSIZ); ++ w_length = USB_COMP_EP0_BUFSIZ; ++ } ++ } ++ + /* partial re-init of the response message; the function or the + * gadget might need to intercept e.g. a control-OUT completion + * when we delegate to it. +@@ -2006,7 +2018,7 @@ int composite_dev_prepare(struct usb_composite_driver *composite, + if (!cdev->req) + return -ENOMEM; + +- cdev->req->buf = kmalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); ++ cdev->req->buf = kzalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); + if (!cdev->req->buf) + goto fail; + +diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c +index 99ca3dabc4f34..f1c5a22704b28 100644 +--- a/drivers/usb/gadget/legacy/dbgp.c ++++ b/drivers/usb/gadget/legacy/dbgp.c +@@ -136,7 +136,7 @@ static int dbgp_enable_ep_req(struct usb_ep *ep) + goto fail_1; + } + +- req->buf = kmalloc(DBGP_REQ_LEN, GFP_KERNEL); ++ req->buf = kzalloc(DBGP_REQ_LEN, GFP_KERNEL); + if (!req->buf) { + err = -ENOMEM; + stp = 2; +@@ -344,6 +344,19 @@ static int dbgp_setup(struct usb_gadget *gadget, + void *data = NULL; + u16 len = 0; + ++ if (length > DBGP_REQ_LEN) { ++ if (ctrl->bRequestType == USB_DIR_OUT) { ++ return err; ++ } else { ++ /* Cast away the const, we are going to overwrite on purpose. */ ++ __le16 *temp = (__le16 *)&ctrl->wLength; ++ ++ *temp = cpu_to_le16(DBGP_REQ_LEN); ++ length = DBGP_REQ_LEN; ++ } ++ } ++ ++ + if (request == USB_REQ_GET_DESCRIPTOR) { + switch (value>>8) { + case USB_DT_DEVICE: +diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c +index b95900168a6b1..af0b34763326d 100644 +--- a/drivers/usb/gadget/legacy/inode.c ++++ b/drivers/usb/gadget/legacy/inode.c +@@ -113,6 +113,8 @@ enum ep0_state { + /* enough for the whole queue: most events invalidate others */ + #define N_EVENT 5 + ++#define RBUF_SIZE 256 ++ + struct dev_data { + spinlock_t lock; + atomic_t count; +@@ -146,7 +148,7 @@ struct dev_data { + struct dentry *dentry; + + /* except this scratch i/o buffer for ep0 */ +- u8 rbuf [256]; ++ u8 rbuf[RBUF_SIZE]; + }; + + static inline void get_dev (struct dev_data *data) +@@ -1332,6 +1334,18 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + ++ if (w_length > RBUF_SIZE) { ++ if (ctrl->bRequestType == USB_DIR_OUT) { ++ return value; ++ } else { ++ /* Cast away the const, we are going to overwrite on purpose. */ ++ __le16 *temp = (__le16 *)&ctrl->wLength; ++ ++ *temp = cpu_to_le16(RBUF_SIZE); ++ w_length = RBUF_SIZE; ++ } ++ } ++ + spin_lock (&dev->lock); + dev->setup_abort = 0; + if (dev->state == STATE_DEV_UNCONNECTED) { +diff --git a/fs/signalfd.c b/fs/signalfd.c +index 270221fcef42c..9c5fa0ab5e0fe 100644 +--- a/fs/signalfd.c ++++ b/fs/signalfd.c +@@ -34,17 +34,7 @@ + + void signalfd_cleanup(struct sighand_struct *sighand) + { +- wait_queue_head_t *wqh = &sighand->signalfd_wqh; +- /* +- * The lockless check can race with remove_wait_queue() in progress, +- * but in this case its caller should run under rcu_read_lock() and +- * sighand_cachep is SLAB_DESTROY_BY_RCU, we can safely return. +- */ +- if (likely(!waitqueue_active(wqh))) +- return; +- +- /* wait_queue_t->func(POLLFREE) should do remove_wait_queue() */ +- wake_up_poll(wqh, POLLHUP | POLLFREE); ++ wake_up_pollfree(&sighand->signalfd_wqh); + } + + struct signalfd_ctx { +diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c +index 6ccfd47157d37..2914220e975cd 100644 +--- a/fs/tracefs/inode.c ++++ b/fs/tracefs/inode.c +@@ -162,6 +162,77 @@ struct tracefs_fs_info { + struct tracefs_mount_opts mount_opts; + }; + ++static void change_gid(struct dentry *dentry, kgid_t gid) ++{ ++ if (!dentry->d_inode) ++ return; ++ dentry->d_inode->i_gid = gid; ++} ++ ++/* ++ * Taken from d_walk, but without he need for handling renames. ++ * Nothing can be renamed while walking the list, as tracefs ++ * does not support renames. This is only called when mounting ++ * or remounting the file system, to set all the files to ++ * the given gid. ++ */ ++static void set_gid(struct dentry *parent, kgid_t gid) ++{ ++ struct dentry *this_parent; ++ struct list_head *next; ++ ++ this_parent = parent; ++ spin_lock(&this_parent->d_lock); ++ ++ change_gid(this_parent, gid); ++repeat: ++ next = this_parent->d_subdirs.next; ++resume: ++ while (next != &this_parent->d_subdirs) { ++ struct list_head *tmp = next; ++ struct dentry *dentry = list_entry(tmp, struct dentry, d_child); ++ next = tmp->next; ++ ++ spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); ++ ++ change_gid(dentry, gid); ++ ++ if (!list_empty(&dentry->d_subdirs)) { ++ spin_unlock(&this_parent->d_lock); ++ spin_release(&dentry->d_lock.dep_map, 1, _RET_IP_); ++ this_parent = dentry; ++ spin_acquire(&this_parent->d_lock.dep_map, 0, 1, _RET_IP_); ++ goto repeat; ++ } ++ spin_unlock(&dentry->d_lock); ++ } ++ /* ++ * All done at this level ... ascend and resume the search. ++ */ ++ rcu_read_lock(); ++ascend: ++ if (this_parent != parent) { ++ struct dentry *child = this_parent; ++ this_parent = child->d_parent; ++ ++ spin_unlock(&child->d_lock); ++ spin_lock(&this_parent->d_lock); ++ ++ /* go into the first sibling still alive */ ++ do { ++ next = child->d_child.next; ++ if (next == &this_parent->d_subdirs) ++ goto ascend; ++ child = list_entry(next, struct dentry, d_child); ++ } while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED)); ++ rcu_read_unlock(); ++ goto resume; ++ } ++ rcu_read_unlock(); ++ spin_unlock(&this_parent->d_lock); ++ return; ++} ++ + static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts) + { + substring_t args[MAX_OPT_ARGS]; +@@ -194,6 +265,7 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts) + if (!gid_valid(gid)) + return -EINVAL; + opts->gid = gid; ++ set_gid(tracefs_mount->mnt_root, gid); + break; + case Opt_mode: + if (match_octal(&args[0], &option)) +@@ -411,6 +483,8 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode, + inode->i_mode = mode; + inode->i_fop = fops ? fops : &tracefs_file_operations; + inode->i_private = data; ++ inode->i_uid = d_inode(dentry->d_parent)->i_uid; ++ inode->i_gid = d_inode(dentry->d_parent)->i_gid; + d_instantiate(dentry, inode); + fsnotify_create(dentry->d_parent->d_inode, dentry); + return end_creating(dentry); +@@ -433,6 +507,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent, + inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP; + inode->i_op = ops; + inode->i_fop = &simple_dir_operations; ++ inode->i_uid = d_inode(dentry->d_parent)->i_uid; ++ inode->i_gid = d_inode(dentry->d_parent)->i_gid; + + /* directory inodes start off with i_nlink == 2 (for "." entry) */ + inc_nlink(inode); +diff --git a/include/linux/hid.h b/include/linux/hid.h +index 6adea5a397245..a93f1218710f0 100644 +--- a/include/linux/hid.h ++++ b/include/linux/hid.h +@@ -754,6 +754,22 @@ struct hid_ll_driver { + int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype); + }; + ++extern struct hid_ll_driver i2c_hid_ll_driver; ++extern struct hid_ll_driver hidp_hid_driver; ++extern struct hid_ll_driver uhid_hid_driver; ++extern struct hid_ll_driver usb_hid_driver; ++ ++static inline bool hid_is_using_ll_driver(struct hid_device *hdev, ++ struct hid_ll_driver *driver) ++{ ++ return hdev->ll_driver == driver; ++} ++ ++static inline bool hid_is_usb(struct hid_device *hdev) ++{ ++ return hid_is_using_ll_driver(hdev, &usb_hid_driver); ++} ++ + #define PM_HINT_FULLON 1<<5 + #define PM_HINT_NORMAL 1<<1 + +diff --git a/include/linux/wait.h b/include/linux/wait.h +index 513b36f04dfd8..419b5b2bf547d 100644 +--- a/include/linux/wait.h ++++ b/include/linux/wait.h +@@ -151,6 +151,7 @@ void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key); + void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode, int nr, void *key); + void __wake_up_locked(wait_queue_head_t *q, unsigned int mode, int nr); + void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr); ++void __wake_up_pollfree(wait_queue_head_t *wq_head); + void __wake_up_bit(wait_queue_head_t *, void *, int); + int __wait_on_bit(wait_queue_head_t *, struct wait_bit_queue *, wait_bit_action_f *, unsigned); + int __wait_on_bit_lock(wait_queue_head_t *, struct wait_bit_queue *, wait_bit_action_f *, unsigned); +@@ -185,6 +186,31 @@ wait_queue_head_t *bit_waitqueue(void *, int); + #define wake_up_interruptible_sync_poll(x, m) \ + __wake_up_sync_key((x), TASK_INTERRUPTIBLE, 1, (void *) (m)) + ++/** ++ * wake_up_pollfree - signal that a polled waitqueue is going away ++ * @wq_head: the wait queue head ++ * ++ * In the very rare cases where a ->poll() implementation uses a waitqueue whose ++ * lifetime is tied to a task rather than to the 'struct file' being polled, ++ * this function must be called before the waitqueue is freed so that ++ * non-blocking polls (e.g. epoll) are notified that the queue is going away. ++ * ++ * The caller must also RCU-delay the freeing of the wait_queue_head, e.g. via ++ * an explicit synchronize_rcu() or call_rcu(), or via SLAB_DESTROY_BY_RCU. ++ */ ++static inline void wake_up_pollfree(wait_queue_head_t *wq_head) ++{ ++ /* ++ * For performance reasons, we don't always take the queue lock here. ++ * Therefore, we might race with someone removing the last entry from ++ * the queue, and proceed while they still hold the queue lock. ++ * However, rcu_read_lock() is required to be held in such cases, so we ++ * can safely proceed with an RCU-delayed free. ++ */ ++ if (waitqueue_active(wq_head)) ++ __wake_up_pollfree(wq_head); ++} ++ + #define ___wait_cond_timeout(condition) \ + ({ \ + bool __cond = (condition); \ +diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c +index f15d6b6a538a9..675228037d12a 100644 +--- a/kernel/sched/wait.c ++++ b/kernel/sched/wait.c +@@ -10,6 +10,7 @@ + #include <linux/wait.h> + #include <linux/hash.h> + #include <linux/kthread.h> ++#include <linux/poll.h> + + void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_class_key *key) + { +@@ -156,6 +157,13 @@ void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr_exclusive) + } + EXPORT_SYMBOL_GPL(__wake_up_sync); /* For internal use only */ + ++void __wake_up_pollfree(wait_queue_head_t *wq_head) ++{ ++ __wake_up(wq_head, TASK_NORMAL, 0, (void *)(POLLHUP | POLLFREE)); ++ /* POLLFREE must have cleared the queue. */ ++ WARN_ON_ONCE(waitqueue_active(wq_head)); ++} ++ + /* + * Note: we use "set_current_state()" _after_ the wait-queue add, + * because we need a memory barrier there on SMP, so that any +diff --git a/mm/backing-dev.c b/mm/backing-dev.c +index f705c58b320b8..08b4c951f39e5 100644 +--- a/mm/backing-dev.c ++++ b/mm/backing-dev.c +@@ -865,6 +865,13 @@ void bdi_unregister(struct backing_dev_info *bdi) + wb_shutdown(&bdi->wb); + cgwb_bdi_destroy(bdi); + ++ /* ++ * If this BDI's min ratio has been set, use bdi_set_min_ratio() to ++ * update the global bdi_min_ratio. ++ */ ++ if (bdi->min_ratio) ++ bdi_set_min_ratio(bdi, 0); ++ + if (bdi->dev) { + bdi_debug_unregister(bdi); + device_unregister(bdi->dev); +diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c +index 9ec37c6c8c4aa..00f25e54119cf 100644 +--- a/net/bluetooth/hidp/core.c ++++ b/net/bluetooth/hidp/core.c +@@ -734,7 +734,7 @@ static void hidp_stop(struct hid_device *hid) + hid->claimed = 0; + } + +-static struct hid_ll_driver hidp_hid_driver = { ++struct hid_ll_driver hidp_hid_driver = { + .parse = hidp_parse, + .start = hidp_start, + .stop = hidp_stop, +@@ -743,6 +743,7 @@ static struct hid_ll_driver hidp_hid_driver = { + .raw_request = hidp_raw_request, + .output_report = hidp_output_report, + }; ++EXPORT_SYMBOL_GPL(hidp_hid_driver); + + /* This function sets up the hid device. It does not add it + to the HID system. That is done in hidp_add_connection(). */ +diff --git a/net/core/neighbour.c b/net/core/neighbour.c +index 17997902d3167..b55306e7edd4a 100644 +--- a/net/core/neighbour.c ++++ b/net/core/neighbour.c +@@ -597,7 +597,7 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl, + + ASSERT_RTNL(); + +- n = kmalloc(sizeof(*n) + key_len, GFP_KERNEL); ++ n = kzalloc(sizeof(*n) + key_len, GFP_KERNEL); + if (!n) + goto out; + +diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c +index c90dc2fd13a7c..00a0f0476a543 100644 +--- a/net/nfc/netlink.c ++++ b/net/nfc/netlink.c +@@ -1366,8 +1366,10 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb) + { + struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; + +- nfc_device_iter_exit(iter); +- kfree(iter); ++ if (iter) { ++ nfc_device_iter_exit(iter); ++ kfree(iter); ++ } + + return 0; + } +diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c +index ac0a40b9ba1e8..3fd7f67e701e4 100644 +--- a/sound/core/control_compat.c ++++ b/sound/core/control_compat.c +@@ -281,6 +281,7 @@ static int copy_ctl_value_to_user(void __user *userdata, + struct snd_ctl_elem_value *data, + int type, int count) + { ++ struct snd_ctl_elem_value32 __user *data32 = userdata; + int i, size; + + if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || +@@ -297,6 +298,8 @@ static int copy_ctl_value_to_user(void __user *userdata, + if (copy_to_user(valuep, data->value.bytes.data, size)) + return -EFAULT; + } ++ if (copy_to_user(&data32->id, &data->id, sizeof(data32->id))) ++ return -EFAULT; + return 0; + } + +diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c +index 1d1faf1925173..593791d9a334f 100644 +--- a/sound/core/oss/pcm_oss.c ++++ b/sound/core/oss/pcm_oss.c +@@ -172,7 +172,7 @@ snd_pcm_hw_param_value_min(const struct snd_pcm_hw_params *params, + * + * Return the maximum value for field PAR. + */ +-static unsigned int ++static int + snd_pcm_hw_param_value_max(const struct snd_pcm_hw_params *params, + snd_pcm_hw_param_t var, int *dir) + { +@@ -707,18 +707,24 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *oss_params, + struct snd_pcm_hw_params *slave_params) + { +- size_t s; +- size_t oss_buffer_size, oss_period_size, oss_periods; +- size_t min_period_size, max_period_size; ++ ssize_t s; ++ ssize_t oss_buffer_size; ++ ssize_t oss_period_size, oss_periods; ++ ssize_t min_period_size, max_period_size; + struct snd_pcm_runtime *runtime = substream->runtime; + size_t oss_frame_size; + + oss_frame_size = snd_pcm_format_physical_width(params_format(oss_params)) * + params_channels(oss_params) / 8; + ++ oss_buffer_size = snd_pcm_hw_param_value_max(slave_params, ++ SNDRV_PCM_HW_PARAM_BUFFER_SIZE, ++ NULL); ++ if (oss_buffer_size <= 0) ++ return -EINVAL; + oss_buffer_size = snd_pcm_plug_client_size(substream, +- snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) * oss_frame_size; +- if (!oss_buffer_size) ++ oss_buffer_size * oss_frame_size); ++ if (oss_buffer_size <= 0) + return -EINVAL; + oss_buffer_size = rounddown_pow_of_two(oss_buffer_size); + if (atomic_read(&substream->mmap_count)) { +@@ -755,7 +761,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, + + min_period_size = snd_pcm_plug_client_size(substream, + snd_pcm_hw_param_value_min(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); +- if (min_period_size) { ++ if (min_period_size > 0) { + min_period_size *= oss_frame_size; + min_period_size = roundup_pow_of_two(min_period_size); + if (oss_period_size < min_period_size) +@@ -764,7 +770,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, + + max_period_size = snd_pcm_plug_client_size(substream, + snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); +- if (max_period_size) { ++ if (max_period_size > 0) { + max_period_size *= oss_frame_size; + max_period_size = rounddown_pow_of_two(max_period_size); + if (oss_period_size > max_period_size) +@@ -777,7 +783,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, + oss_periods = substream->oss.setup.periods; + + s = snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIODS, NULL); +- if (runtime->oss.maxfrags && s > runtime->oss.maxfrags) ++ if (s > 0 && runtime->oss.maxfrags && s > runtime->oss.maxfrags) + s = runtime->oss.maxfrags; + if (oss_periods > s) + oss_periods = s; +@@ -903,8 +909,15 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) + err = -EINVAL; + goto failure; + } +- choose_rate(substream, sparams, runtime->oss.rate); +- snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_CHANNELS, runtime->oss.channels, NULL); ++ ++ err = choose_rate(substream, sparams, runtime->oss.rate); ++ if (err < 0) ++ goto failure; ++ err = snd_pcm_hw_param_near(substream, sparams, ++ SNDRV_PCM_HW_PARAM_CHANNELS, ++ runtime->oss.channels, NULL); ++ if (err < 0) ++ goto failure; + + format = snd_pcm_oss_format_from(runtime->oss.format); + +@@ -2012,7 +2025,7 @@ static int snd_pcm_oss_set_fragment1(struct snd_pcm_substream *substream, unsign + if (runtime->oss.subdivision || runtime->oss.fragshift) + return -EINVAL; + fragshift = val & 0xffff; +- if (fragshift >= 31) ++ if (fragshift >= 25) /* should be large enough */ + return -EINVAL; + runtime->oss.fragshift = fragshift; + runtime->oss.maxfrags = (val >> 16) & 0xffff; |