From 40aa7030e5213a43e9e0554fd7f95534ea310bf3 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 22 Jan 2010 18:00:03 +0100
Subject: [PATCH] ASoC: fix a memory-leak in wm8903
Remember to free the temporary register-cache.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
---
sound/soc/codecs/wm8903.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index ce5515e3f2b0b..3595bd57c4eb8 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1504,7 +1504,7 @@ static int wm8903_resume(struct platform_device *pdev)
struct i2c_client *i2c = codec->control_data;
int i;
u16 *reg_cache = codec->reg_cache;
- u16 *tmp_cache = kmemdup(codec->reg_cache, sizeof(wm8903_reg_defaults),
+ u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
GFP_KERNEL);
/* Bring the codec back up to standby first to minimise pop/clicks */
@@ -1516,6 +1516,7 @@ static int wm8903_resume(struct platform_device *pdev)
for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
if (tmp_cache[i] != reg_cache[i])
snd_soc_write(codec, i, tmp_cache[i]);
+ kfree(tmp_cache);
} else {
dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
}
--
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