ASoC: es8328: harmless underflow in es8328_put_deemph()

Valid values for "deemph" are zero and one but we accidentally allow
negative values as well.  It's harmless but it causes static checker
warnings and we may as well clean it up.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
index 6a091016e0fc767c2465cfd5c8eaf822d09d2ea3..969e337dc17c131413e43f666edd5b299fc11544 100644 (file)
--- a/sound/soc/codecs/es8328.c
+++ b/sound/soc/codecs/es8328.c
@@ -129,7 +129,7 @@ static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
 {
        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
-       int deemph = ucontrol->value.integer.value[0];
+       unsigned int deemph = ucontrol->value.integer.value[0];
        int ret;
 
        if (deemph > 1)