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ASoC: intel: Fix memleak in sst_media_open 

[ Upstream commit 062fa09f44 ]

When power_up_sst() fails, stream needs to be freed
just like when try_module_get() fails. However, current
code is returning directly and ends up leaking memory.

Fixes: 0121327c1a ("ASoC: Intel: mfld-pcm: add control for powering up/down dsp")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200813084112.26205-1-dinghao.liu@zju.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Dinghao Liu 2020-08-13 16:41:10 +08:00 committed by Greg Kroah-Hartman
parent 8aeb112d58
commit 503176f5dc
1 changed files with 3 additions and 2 deletions
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5
sound/soc/intel/atom/sst-mfld-platform-pcm.c
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@ -331,7 +331,7 @@ static int sst_media_open(struct snd_pcm_substream *substream,
ret_val = power_up_sst(stream);
if (ret_val < 0)
return ret_val;
goto out_power_up;
/* Make sure, that the period size is always even */
snd_pcm_hw_constraint_step(substream->runtime, 0,
@ -340,8 +340,9 @@ static int sst_media_open(struct snd_pcm_substream *substream,
return snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
out_ops:
kfree(stream);
mutex_unlock(&sst_lock);
out_power_up:
kfree(stream);
return ret_val;
}