redonkable/alistair23-linux
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alistair23-linux/drivers
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Kweh, Hock Leong 000deba73a firmware loader: fix hung task warning dump 
When using request_firmware_nowait() with FW_ACTION_NOHOTPLUG param to
expose user helper interface, if the user do not react immediately, after
120 seconds there will be a hung task warning message dumped as below:

[ 3000.784235] INFO: task kworker/0:0:8259 blocked for more than 120 seconds.
[ 3000.791281]       Tainted: G            E 3.16.0-rc1-yocto-standard #41
[ 3000.798082] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 3000.806072] kworker/0:0     D cd0075c8     0  8259      2 0x00000000
[ 3000.812765] Workqueue: events request_firmware_work_func
[ 3000.818253]  cd375e18 00000046 0000000e cd0075c8 000000f0 cd40ea00 cd375fec 1b883e89
[ 3000.826374]  0000026b cd40ea00 80000000 00000001 cd0075c8 00000000 cd375de4 c119917f
[ 3000.834492]  cd563360 cd375df4 c119a0ab cd563360 00000000 cd375e24 c119a1d6 00000000
[ 3000.842616] Call Trace:
[ 3000.845252]  [<c119917f>] ? kernfs_next_descendant_post+0x3f/0x50
[ 3000.851543]  [<c119a0ab>] ? kernfs_activate+0x6b/0xc0
[ 3000.856790]  [<c119a1d6>] ? kernfs_add_one+0xd6/0x130
[ 3000.862047]  [<c15fdb02>] schedule+0x22/0x60
[ 3000.866548]  [<c15fd195>] schedule_timeout+0x175/0x1d0
[ 3000.871887]  [<c119b391>] ? __kernfs_create_file+0x71/0xa0
[ 3000.877574]  [<c119bb9a>] ? sysfs_add_file_mode_ns+0xaa/0x180
[ 3000.883533]  [<c15fe84f>] wait_for_completion+0x6f/0xb0
[ 3000.888961]  [<c1065200>] ? wake_up_process+0x40/0x40
[ 3000.894219]  [<c13cb600>] _request_firmware+0x750/0x9f0
[ 3000.899666]  [<c1382a7f>] ? n_tty_receive_buf2+0x1f/0x30
[ 3000.905200]  [<c13cba02>] request_firmware_work_func+0x22/0x50
[ 3000.911235]  [<c10550d2>] process_one_work+0x122/0x380
[ 3000.916571]  [<c1055859>] worker_thread+0xf9/0x470
[ 3000.921555]  [<c1055760>] ? create_and_start_worker+0x50/0x50
[ 3000.927497]  [<c1055760>] ? create_and_start_worker+0x50/0x50
[ 3000.933448]  [<c105a5ff>] kthread+0x9f/0xc0
[ 3000.937850]  [<c15ffd40>] ret_from_kernel_thread+0x20/0x30
[ 3000.943548]  [<c105a560>] ? kthread_worker_fn+0x100/0x100

This patch change the wait_for_completion() function call to
wait_for_completion_interruptible() function call for solving the issue.

Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26 19:41:15 -08:00
..
accessibility
acpi cpumask: factor out show_cpumap into separate helper function 2014-11-07 11:45:00 -08:00
amba amba: drop owner assignment from platform_drivers 2014-10-20 16:20:16 +02:00
ata ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
atm atm: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
auxdisplay
base firmware loader: fix hung task warning dump 2014-11-26 19:41:15 -08:00
bcma bcma: add another PCI ID of device with BCM43228 2014-10-23 14:02:06 -04:00
block Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
bluetooth bluetooth: drop owner assignment from platform_drivers 2014-10-20 16:20:19 +02:00
bus bus: drop owner assignment from platform_drivers 2014-10-20 16:20:19 +02:00
cdrom
char Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
clk clk: x86: drop owner assignment from platform_drivers 2014-10-20 16:20:23 +02:00
clocksource ARM/ARM64: arch-timer: fix arch_timer_probed logic 2014-10-26 20:50:00 +01:00
connector
cpufreq Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
cpuidle Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
crypto crypto: ux500: hash: drop owner assignment from platform_drivers 2014-10-20 16:20:27 +02:00
dca
devfreq devfreq: exynos: drop owner assignment from platform_drivers 2014-10-20 16:20:27 +02:00
dio
dma dma: sh: drop owner assignment from platform_drivers 2014-10-20 16:20:29 +02:00
dma-buf dma-buf: don't open-code atomic_long_read() 2014-10-09 02:39:07 -04:00
edac Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
eisa
extcon extcon: drop owner assignment from platform_drivers 2014-10-20 16:20:30 +02:00
firewire
firmware Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
fmc
gpio gpio: drop owner assignment from platform_drivers 2014-10-20 16:20:31 +02:00
gpu Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2014-10-29 11:52:35 -07:00
hsi hsi: controllers: drop owner assignment from platform_drivers 2014-10-20 16:20:35 +02:00
hv
hwmon Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
hwspinlock hwspinlock: drop owner assignment from platform_drivers 2014-10-20 16:20:37 +02:00
i2c i2c: muxes: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
ide ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
idle
iio Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-10-31 15:04:58 -07:00
input Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
iommu iommu: drop owner assignment from platform_drivers 2014-10-20 16:20:42 +02:00
ipack
irqchip irqchip: drop owner assignment from platform_drivers 2014-10-20 16:20:42 +02:00
isdn isdn/gigaset: fix usb_gigaset write_cmd result race 2014-10-14 15:05:35 -04:00
leds Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
lguest
macintosh macintosh: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
mailbox Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
mcb
md . fix DM's long-standing excessive use of memory by leveraging the new 2014-10-18 12:25:30 -07:00
media Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
memory memory: drop owner assignment from platform_drivers 2014-10-20 16:20:52 +02:00
memstick memstick: host: drop owner assignment from platform_drivers 2014-10-20 16:20:53 +02:00
message SCSI for-linus on 20141007 2014-10-07 21:29:18 -04:00
mfd mfd: drop owner assignment from platform_drivers 2014-10-20 16:20:53 +02:00
misc Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
mmc mmc: host: drop owner assignment from platform_drivers 2014-10-20 16:20:56 +02:00
mtd Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
net ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries 2014-11-26 19:38:37 -08:00
nfc nfc: drop owner assignment from platform_drivers 2014-10-20 16:21:19 +02:00
ntb ntb: Adding split BAR support for Haswell platforms 2014-10-17 07:08:51 -04:00
nubus
of drivers: of: add return value to of_reserved_mem_device_init() 2014-10-29 16:33:14 -07:00
oprofile
parisc Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 16:23:15 +02:00
parport parport: drop owner assignment from platform_drivers 2014-10-20 16:21:20 +02:00
pci cpumask: factor out show_cpumap into separate helper function 2014-11-07 11:45:00 -08:00
pcmcia pcmcia: drop owner assignment from platform_drivers 2014-10-20 16:21:21 +02:00
phy
pinctrl pinctrl: vt8500: drop owner assignment from platform_drivers 2014-10-20 16:21:26 +02:00
platform platform: x86: drop owner assignment from platform_drivers 2014-10-20 16:21:27 +02:00
pnp PNP: replace strnicmp with strncasecmp 2014-10-14 02:18:25 +02:00
power Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
powercap
pps pps: clients: drop owner assignment from platform_drivers 2014-10-20 16:21:28 +02:00
ps3
ptp
pwm Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
rapidio
ras
regulator Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
remoteproc remoteproc: drop owner assignment from platform_drivers 2014-10-20 16:21:29 +02:00
reset reset: sti: drop owner assignment from platform_drivers 2014-10-20 16:21:30 +02:00
rpmsg
rtc Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
s390 Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
sbus sbus: char: drop owner assignment from platform_drivers 2014-10-20 16:21:32 +02:00
scsi Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
sfi
sh
sn
soc soc: ti: drop owner assignment from platform_drivers 2014-10-20 16:21:35 +02:00
spi Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
spmi spmi: drop owner assignment from platform_drivers 2014-10-20 16:21:36 +02:00
ssb This is the bulk of GPIO changes for the v3.18 development 2014-10-09 14:58:15 -04:00
staging Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-10-21 13:06:38 -07:00
tc
thermal Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
thunderbolt
tty tty: serial: cpm_uart: drop owner assignment from platform_drivers 2014-10-20 16:21:46 +02:00
uio Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
usb Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
uwb
vfio IOMMU Updates for Linux v3.18 2014-10-15 07:23:49 +02:00
vhost
video Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
virt
virtio virtio: drop owner assignment from platform_drivers 2014-10-20 16:21:55 +02:00
vlynq
vme
w1 w1: masters: drop owner assignment from platform_drivers 2014-10-20 16:21:56 +02:00
watchdog Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
xen xen/pci: Allocate memory for physdev_pci_device_add's optarr 2014-10-23 16:24:02 +01:00
zorro zorro: drop owner assignment from platform_drivers 2014-10-20 16:21:57 +02:00
Kconfig
Makefile