From: Jim Lodes <jim.lodes@garmin.com>
Date: Mon, 25 Apr 2016 16:10:07 +0000 (-0500)
Subject: ASoC: omap-pcm: Initialize DMA configuration
X-Git-Tag: v4.7-rc1~11^2^2~9^2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=989ff7754a27a1fcc0c3b2794c985b31811871a0;p=karo-tx-linux.git

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 6bb623a2a4df..eb81b9a2293a 100644
--- 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.