ALSA: seq: Remove spurious WARN_ON() at timer check

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commit 43a3542870 upstream.

The use of snd_BUG_ON() in ALSA sequencer timer may lead to a spurious
WARN_ON() when a slave timer is deployed as its backend and a
corresponding master timer stops meanwhile.  The symptom was triggered
by syzkaller spontaneously.

Since the NULL timer is valid there, rip off snd_BUG_ON().

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Takashi Iwai 2017-11-30 10:08:28 +01:00 • committed by Greg Kroah-Hartman

parent 45ddff3ce4

commit 20ca63e096

1 changed files with 1 additions and 1 deletions

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sound/core/seq/seq_timer.c

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