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Diffstat (limited to 'sound/soc/codecs/max9759.c')
-rw-r--r--sound/soc/codecs/max9759.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/codecs/max9759.c b/sound/soc/codecs/max9759.c
index d75fd61b9032..bc57d7687f16 100644
--- a/sound/soc/codecs/max9759.c
+++ b/sound/soc/codecs/max9759.c
@@ -64,7 +64,8 @@ static int speaker_gain_control_put(struct snd_kcontrol *kcontrol,
struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
struct max9759 *priv = snd_soc_component_get_drvdata(c);
- if (ucontrol->value.integer.value[0] > 3)
+ if (ucontrol->value.integer.value[0] < 0 ||
+ ucontrol->value.integer.value[0] > 3)
return -EINVAL;
priv->gain = ucontrol->value.integer.value[0];