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Commit 3e2a71b2 authored by Dan Carpenter's avatar Dan Carpenter Committed by Mark Brown
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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: default avatarDan Carpenter <dan.carpenter@oracle.com>
Acked-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6ff33f39

sound/soc/codecs/wm8955.c

+1 −1
Original line number Diff line number Diff line
@@ -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;