[alsa-devel] [patch] ASoC: wm8960: harmless underflow in wm8960_put_deemph()

Valid values of "deemph" are zero and one, but we accidentally allow negative values as well. It's harmless but we may as well fix it.

Signed-off-by: Dan Carpenter dan.carpenter@oracle.com

diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c index e3b7d0c..dc47c2f 100644 --- a/sound/soc/codecs/wm8960.c +++ b/sound/soc/codecs/wm8960.c @@ -201,7 +201,7 @@ static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, { struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - int deemph = ucontrol->value.integer.value[0]; + unsigned int deemph = ucontrol->value.integer.value[0];

if (deemph > 1) return -EINVAL;