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authorDan Carpenter <dan.carpenter@oracle.com>2015-10-13 10:10:48 +0300
committerMark Brown <broonie@kernel.org>2015-10-22 15:57:39 +0300
commit3e2a71b232d6b6270eda72ff659c31c97899c00d (patch)
tree8381ee7bb377bdcece781722c53f7e9d9e327638 /sound/soc/codecs/wm8955.c
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff)
downloadlinux-3e2a71b232d6b6270eda72ff659c31c97899c00d.tar.xz
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> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm8955.c')
-rw-r--r--sound/soc/codecs/wm8955.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 12e4435f00f8..9db00d53abe7 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;