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authorDan Carpenter <dan.carpenter@oracle.com>2015-10-13 10:08:18 +0300
committerMark Brown <broonie@kernel.org>2015-10-22 13:54:13 +0100
commit931dfa6931448ccfd12d4ccd8d1d9289ceb92439 (patch)
tree15e5684c4a4bd9f5373afbc0e5283bbf518e478d /sound
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff)
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ASoC: wm8904: harmless underflow in wm8904_put_deemph()
We try to check that "deemph" is zero or one, but because of an underflow bug, it can also be negative. It's fine, negative values are handled as non-zero. But it's messy and static checkers complain so let's fix it. 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')
-rw-r--r--sound/soc/codecs/wm8904.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index b783743dc97e..2aa23f1b9e3c 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -534,7 +534,7 @@ static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8904_priv *wm8904 = 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;