From 3e2a71b232d6b6270eda72ff659c31c97899c00d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 13 Oct 2015 10:10:48 +0300 Subject: [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 Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/wm8955.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- 2.7.4