]> git.karo-electronics.de Git - karo-tx-linux.git/commit
ALSA: hda - Cancel probe work instead of flush at remove
authorTakashi Iwai <tiwai@suse.de>
Mon, 15 Feb 2016 15:37:24 +0000 (16:37 +0100)
committerTakashi Iwai <tiwai@suse.de>
Mon, 15 Feb 2016 15:37:24 +0000 (16:37 +0100)
commit0b8c82190c12e530eb6003720dac103bf63e146e
tree6ca56c5838570dd620b6addceceb8ea56b8d839c
parentd99a36f4728fcbcc501b78447f625bdcce15b842
ALSA: hda - Cancel probe work instead of flush at remove

The commit [991f86d7ae4e: ALSA: hda - Flush the pending probe work at
remove] introduced the sync of async probe work at remove for fixing
the race.  However, this may lead to another hangup when the module
removal is performed quickly before starting the probe work, because
it issues flush_work() and it's blocked forever.

The workaround is to use cancel_work_sync() instead of flush_work()
there.

Fixes: 991f86d7ae4e ('ALSA: hda - Flush the pending probe work at remove')
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_intel.c