diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c
index b54610b27906..d7b157ddc9a8 100644
--- a/sound/soc/codecs/mt6358.c
+++ b/sound/soc/codecs/mt6358.c
@@ -429,7 +429,7 @@ static int mt6358_put_volsw(struct snd_kcontrol *kcontrol,
 	struct mt6358_priv *priv = snd_soc_component_get_drvdata(component);
 	struct soc_mixer_control *mc =
 			(struct soc_mixer_control *)kcontrol->private_value;
-	unsigned int reg;
+	unsigned int reg = 0;
 	int ret;
 
 	ret = snd_soc_put_volsw(kcontrol, ucontrol);