From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 07:35:07 +0000 (+0100)
Subject: ASoC: wm8996: Fix negative array index read
X-Git-Tag: v4.14-rc1~8507^2~33^2^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fe329a1a92cfe2d0c7e04fe3bc63761dc0f35950;p=platform%2Fkernel%2Flinux-rpi.git

ASoC: wm8996: Fix negative array index read

Spotted by coverity CID 146355.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index 46fe83d..b70379e 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -438,6 +438,8 @@ static int wm8996_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
 	struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
 	int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
 
+	if (block < 0)
+		return block;
 	ucontrol->value.enumerated.item[0] = wm8996->retune_mobile_cfg[block];
 
 	return 0;