ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume

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commit 3ab7992018 upstream.

In commit 411cef6adf ("ALSA: mixer: oss: Fix racy access to slots")
added mutex protection in snd_mixer_oss_set_volume(). Second
mutex_lock() in same function looks like typo, fix it.

Reported-by: syzbot+ace149a75a9a0a399ac7@syzkaller.appspotmail.com
Fixes: 411cef6adf ("ALSA: mixer: oss: Fix racy access to slots")
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211024140315.16704-1-paskripkin@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pavel Skripkin 2021-10-24 17:03:15 +03:00 • committed by Greg Kroah-Hartman

parent b13a4908f4

commit 41714a17a2

1 changed files with 1 additions and 1 deletions

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sound/core/oss/mixer_oss.c

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