From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 13 Oct 2015 07:11:09 +0000
Subject: [patch] ASoC: es8328: harmless underflow in es8328_put_deemph()
Message-Id: <20151013071109.GH31537@mwanda>
List-Id: <kernel-janitors.vger.kernel.org>
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To: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>, Lars-Peter Clausen <lars@metafoo.de>, Wei Yongjun <yongjun_wei@trendmicro.com.cn>, alsa-devel@alsa-project.org, kernel-janitors@vger.kernel.org

Valid values for "deemph" are zero and one but we accidentally allow
negative values as well.  It's harmless but it causes static checker
warnings and we may as well clean it up.

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

diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
index 6a09101..969e337 100644
--- a/sound/soc/codecs/es8328.c
+++ b/sound/soc/codecs/es8328.c
@@ -129,7 +129,7 @@ static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.integer.value[0];
+	unsigned int deemph = ucontrol->value.integer.value[0];
 	int ret;
 
 	if (deemph > 1)