ASoC: omap-pcm: Initialize DMA configuration

Initialize the dma_slave_config for PCM DMA transfers,
instead of leaving it uninitialized. Keeps previous data on
the stack from giving us invalid values in uninitialized
members of the config structure.

Signed-off-by: Jim Lodes <jim.lodes@garmin.com>
Signed-off-by: J.D. Schroeder <jay.schroeder@garmin.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 6bb623a..eb81b9a 100644 (file)
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -82,6 +82,8 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream,
        struct dma_chan *chan;
        int err = 0;
 
+       memset(&config, 0x00, sizeof(config));
+
        dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
        /* return if this is a bufferless transfer e.g.