[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>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/i2c/other/pt2258.c b/sound/i2c/other/pt2258.c
index 00c83d8b32b..987d2c9a7a6 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;