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ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages

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commit 44fabd8cda upstream.

snd_pcm_lib_malloc_pages() may fail, so let's check its status and
return its error code upstream.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kangjie Lu
2018-12-25 20:29:48 -06:00
committed by Greg Kroah-Hartman
parent 3e05ceedf1
commit d6847f539b
1 changed files with 7 additions and 1 deletions
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8
sound/soc/intel/atom/sst-mfld-platform-pcm.c
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@@ -399,7 +399,13 @@ static int sst_media_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
int ret;
ret =
snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(params));
if (ret)
return ret;
memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
return 0;
}