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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>,
	Charles Keepax <ckeepax@opensource.wolfsonmicro.com>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Mauro Carvalho Chehab <m.chehab@samsung.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Axel Lin <axel.lin@ingics.com>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	abdoulaye berthe <berthe.ab@gmail.com>,
	patches@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] ASoC: wm8903: harmless underflow in wm8903_put_deemph()
Date: Tue, 13 Oct 2015 10:10:18 +0300	[thread overview]
Message-ID: <20151013071018.GF31537@mwanda> (raw)

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

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

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index b011253..e4cc41e 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -452,7 +452,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.integer.value[0];
+	unsigned int deemph = ucontrol->value.integer.value[0];
 	int ret = 0;
 
 	if (deemph > 1)

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>,
	Charles Keepax <ckeepax@opensource.wolfsonmicro.com>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Mauro Carvalho Chehab <m.chehab@samsung.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Axel Lin <axel.lin@ingics.com>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	abdoulaye berthe <berthe.ab@gmail.com>,
	patches@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] ASoC: wm8903: harmless underflow in wm8903_put_deemph()
Date: Tue, 13 Oct 2015 07:10:18 +0000	[thread overview]
Message-ID: <20151013071018.GF31537@mwanda> (raw)

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

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

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index b011253..e4cc41e 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -452,7 +452,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.integer.value[0];
+	unsigned int deemph = ucontrol->value.integer.value[0];
 	int ret = 0;
 
 	if (deemph > 1)

             reply	other threads:[~2015-10-13  7:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-13  7:10 Dan Carpenter [this message]
2015-10-13  7:10 ` [patch] ASoC: wm8903: harmless underflow in wm8903_put_deemph() Dan Carpenter
2015-10-13 12:28 ` Charles Keepax
2015-10-13 12:28   ` Charles Keepax
2015-10-22 23:09 ` Applied "ASoC: wm8903: harmless underflow in wm8903_put_deemph()" to the asoc tree Mark Brown

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