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| author | Axel Lin <axel.lin@gmail.com> | 2010-07-23 05:53:53 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-08-03 07:46:27 +0100 |
| commit | d484366beeab0cded9644083172151c5afacc503 (patch) | |
| tree | a560757325c9c842e12c4f87b25e759b1997a341 | |
| parent | 4eaac50552395f693b8c428872e8b5311c3dab60 (diff) | |
| download | linux-3.10-d484366beeab0cded9644083172151c5afacc503.tar.gz linux-3.10-d484366beeab0cded9644083172151c5afacc503.tar.bz2 linux-3.10-d484366beeab0cded9644083172151c5afacc503.zip | |
ASoC: wm8978: fix a memory leak if a wm8978_register fail
There is a memory leak found if wm8978_register() fail.
This patch moves the buffer allocate and release
at the same level to prevent the memory leak.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | sound/soc/codecs/wm8978.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c index 51d5f433215..8a1ad778e7e 100644 --- a/sound/soc/codecs/wm8978.c +++ b/sound/soc/codecs/wm8978.c @@ -1076,7 +1076,6 @@ static __devinit int wm8978_register(struct wm8978_priv *wm8978) err_codec: snd_soc_unregister_codec(codec); err: - kfree(wm8978); return ret; } @@ -1085,13 +1084,13 @@ static __devexit void wm8978_unregister(struct wm8978_priv *wm8978) wm8978_set_bias_level(&wm8978->codec, SND_SOC_BIAS_OFF); snd_soc_unregister_dai(&wm8978_dai); snd_soc_unregister_codec(&wm8978->codec); - kfree(wm8978); wm8978_codec = NULL; } static __devinit int wm8978_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + int ret; struct wm8978_priv *wm8978; struct snd_soc_codec *codec; @@ -1107,13 +1106,18 @@ static __devinit int wm8978_i2c_probe(struct i2c_client *i2c, codec->dev = &i2c->dev; - return wm8978_register(wm8978); + ret = wm8978_register(wm8978); + if (ret < 0) + kfree(wm8978); + + return ret; } static __devexit int wm8978_i2c_remove(struct i2c_client *client) { struct wm8978_priv *wm8978 = i2c_get_clientdata(client); wm8978_unregister(wm8978); + kfree(wm8978); return 0; } |