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ASoC: core: fix the memory leak in case of device_add() failure 

After called device_initialize(), even device_add() returns
error, we still need use the put_device() to release the reference
to call rtd_release(), which will do the free() action.

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Chuansheng Liu 2012-12-26 00:56:05 +08:00 committed by Mark Brown
parent 5db1bc1892
commit 865df9cb12
1 changed files with 2 additions and 0 deletions
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2
sound/soc/soc-core.c
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@ -1255,6 +1255,8 @@ static int soc_post_component_init(struct snd_soc_card *card,
INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
ret = device_add(rtd->dev); ret = device_add(rtd->dev);
if (ret < 0) { if (ret < 0) {
/* calling put_device() here to free the rtd->dev */
put_device(rtd->dev);
dev_err(card->dev, dev_err(card->dev,
"ASoC: failed to register runtime device: %d\n", ret); "ASoC: failed to register runtime device: %d\n", ret);
return ret; return ret;