[alsa-devel] [patch] ASoC: wm8955: harmless underflow in wm8955_put_deemph()

Valid values for "deemph" are zero and one, but we mistakenly allow negative values as well. It's harmless but we may as well clean it up.

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

diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c index 12e4435..9db00d5 100644 --- a/sound/soc/codecs/wm8955.c +++ b/sound/soc/codecs/wm8955.c @@ -402,7 +402,7 @@ static int wm8955_put_deemph(struct snd_kcontrol *kcontrol, { struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct wm8955_priv *wm8955 = 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;