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| author | Eugene Teo <eugene.teo@eugeneteo.net> | 2006-03-25 03:08:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-25 08:22:59 -0800 |
| commit | fe9bab2df96cec7011773aab272515b9faa9b6c4 (patch) | |
| tree | 9e345e83dfd004464d250053f2bb63b9432830bc /sound/oss/sb_mixer.c | |
| parent | 1f4d4a80fbcb1e09cfb95660bcd2b677ea6d04c1 (diff) | |
| download | lwn-fe9bab2df96cec7011773aab272515b9faa9b6c4.tar.gz lwn-fe9bab2df96cec7011773aab272515b9faa9b6c4.zip | |
[PATCH] Fix sb_mixer use before validation
dev should be validated before it is being used as index to array.
Coverity bug #871
Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/oss/sb_mixer.c')
| -rw-r--r-- | sound/oss/sb_mixer.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/oss/sb_mixer.c b/sound/oss/sb_mixer.c index f56898c3981e..ccb21d48d42c 100644 --- a/sound/oss/sb_mixer.c +++ b/sound/oss/sb_mixer.c @@ -273,14 +273,14 @@ int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right) int regoffs; unsigned char val; + if ((dev < 0) || (dev >= devc->iomap_sz)) + return -EINVAL; + regoffs = (*devc->iomap)[dev][LEFT_CHN].regno; if (regoffs == 0) return -EINVAL; - if ((dev < 0) || (dev >= devc->iomap_sz)) - return -EINVAL; - val = sb_getmixer(devc, regoffs); change_bits(devc, &val, dev, LEFT_CHN, left); |