ALSA: pcm: Remove yet superfluous WARN_ON()

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commit 23b19b7b50 upstream.

muldiv32() contains a snd_BUG_ON() (which is morphed as WARN_ON() with
debug option) for checking the case of 0 / 0.  This would be helpful
if this happens only as a logical error; however, since the hw refine
is performed with any data set provided by user, the inconsistent
values that can trigger such a condition might be passed easily.
Actually, syzbot caught this by passing some zero'ed old hw_params
ioctl.

So, having snd_BUG_ON() there is simply superfluous and rather
harmful to give unnecessary confusions.  Let's get rid of it.

Reported-by: syzbot+7e6ee55011deeebce15d@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Takashi Iwai 2018-01-10 23:48:05 +01:00 • committed by Ben Hutchings

parent f0e95a371a

commit 1901ad4e0b

1 changed files with 0 additions and 1 deletions

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sound/core/pcm_lib.c

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