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authorTakashi Iwai <tiwai@suse.de>2007-11-15 16:17:24 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:29:25 +0100
commit3b892467786410f26dffc2c7bccd3ea445604037 (patch)
tree4a70f86b1545e9be95d987fc248cac3cebbbd9a8 /sound/i2c
parent498ade1a133dffd0f3ee90952737045d56e6689a (diff)
downloadlinux-linaro-stable-3b892467786410f26dffc2c7bccd3ea445604037.tar.gz
[ALSA] Check value range in ctl callbacks
Check the value ranges in ctl put callbacks properly (in the rest drivers). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/i2c')
-rw-r--r--sound/i2c/other/pt2258.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/i2c/other/pt2258.c b/sound/i2c/other/pt2258.c
index 00c83d8b32b1..987d2c9a7a64 100644
--- a/sound/i2c/other/pt2258.c
+++ b/sound/i2c/other/pt2258.c
@@ -113,6 +113,8 @@ static int pt2258_stereo_volume_put(struct snd_kcontrol *kcontrol,
val0 = 79 - ucontrol->value.integer.value[0];
val1 = 79 - ucontrol->value.integer.value[1];
+ if (val0 < 0 || val0 > 79 || val1 < 0 || val1 > 79)
+ return -EINVAL;
if (val0 == pt->volume[base] && val1 == pt->volume[base + 1])
return 0;