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ASoC: generic-dmaengine-pcm: Clear slave_config memory

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We currently assume that the DMA Slave Config will be fully populated
by the platform, however some DMA Engines make decisions based on zero
(default) flags such as DMA_SLAVE_BUSWIDTH_UNDEFINED and as this is a
static declaration we need to memset it to clear the data area.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lee Jones 2013-11-06 10:16:20 +00:00 committed by Mark Brown
parent f82bf8e2c8
commit a894bd7fb5
1 changed files with 2 additions and 0 deletions
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2
sound/soc/soc-generic-dmaengine-pcm.c
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@ -90,6 +90,8 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
struct dma_slave_config slave_config;
int ret;
memset(&slave_config, 0, sizeof(slave_config));
if (!pcm->config)
prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
else