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ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer
authorSu Hui <suhui@nfschina.com>
Thu, 15 Jun 2023 02:17:32 +0000 (10:17 +0800)
committerTakashi Iwai <tiwai@suse.de>
Thu, 15 Jun 2023 06:41:40 +0000 (08:41 +0200)
commit79597c8bf64ca99eab385115743131d260339da5
tree2b4352607db0839d04b136b97bc73d72f98521cetree | snapshot
parent58cc6133cc27496c1f041f302e13c33f0867be8acommit | diff
ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

smatch error:
sound/pci/ac97/ac97_codec.c:2354 snd_ac97_mixer() error:
we previously assumed 'rac97' could be null (see line 2072)

remove redundant assignment, return error if rac97 is NULL.

Fixes: da3cec35dd3c ("ALSA: Kill snd_assert() in sound/pci/*")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20230615021732.1972194-1-suhui@nfschina.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/ac97/ac97_codec.c diff | blob | history
Domain: System / Kernel;