ASoC: mediatek: mt6359: fix UNINIT problem

Coverity shows decaring variable reg without initializer. When
regmap_read returns an error, reg keeps the value left from earlier
computation. To prevent from the unexpected result in the case, assign
0 to reg.

Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20230307040938.7484-5-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/mt6359.c b/sound/soc/codecs/mt6359.c
index c9a453c..cb487e6 100644 (file)
--- a/sound/soc/codecs/mt6359.c
+++ b/sound/soc/codecs/mt6359.c
@@ -358,7 +358,7 @@ static int mt6359_put_volsw(struct snd_kcontrol *kcontrol,
        struct mt6359_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 index = ucontrol->value.integer.value[0];
        int ret;