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ASoC: imx: check kzalloc() result and fix memory leak 

If kzalloc() fails we must exit with -ENOMEM. Also we must free
allocated runtime->private_data on error as it would be lost on next
call to snd_imx_open().

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kulikov Vasiliy 2010-07-16 20:16:34 +04:00 committed by Mark Brown
parent 55938b106f
commit 51b6dfb627
1 changed files with 5 additions and 1 deletions
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6
sound/soc/imx/imx-pcm-dma-mx2.c
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@ -292,12 +292,16 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
int ret;
iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
if (iprtd == NULL)
return -ENOMEM;
runtime->private_data = iprtd;
ret = snd_pcm_hw_constraint_integer(substream->runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
if (ret < 0) {
kfree(iprtd);
return ret;
}
snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
return 0;