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authorDaniel Mack <daniel@caiaq.de>2010-03-19 14:52:55 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-19 19:37:29 +0000
commitfd23b7dee5e4d369f620979cb120f53629389355 (patch)
treebbfa4637b0b97662b8ee63922eccb01913baaf1d /sound/soc/atmel
parent093208f5d03980d7216b706e3c54432d0f299e26 (diff)
ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream
This fixes a memory corruption when ASoC devices are used in full-duplex mode. Specifically for pxa-ssp code, where this pointer is dynamically allocated for each direction and destroyed upon each stream start. All other platforms are fixed blindly, I couldn't even compile-test them. Sorry for any breakage I may have caused. Reported-by: Sven Neumann <s.neumann@raumfeld.com> Reported-by: Michael Hirsch <m.hirsch@raumfeld.com> Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/atmel')
-rw-r--r--sound/soc/atmel/atmel-pcm.c2
-rw-r--r--sound/soc/atmel/atmel_ssc_dai.c6
2 files changed, 4 insertions, 4 deletions
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index fdb255372127..f6b3cc04b34b 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -180,7 +180,7 @@ static int atmel_pcm_hw_params(struct snd_pcm_substream *substream,
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
- prtd->params = rtd->dai->cpu_dai->dma_data;
+ prtd->params = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
prtd->dma_buffer = runtime->dma_addr;
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index e588e63f18d2..0b59806905d1 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -363,12 +363,12 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
ssc_p->dma_params[dir] = dma_params;
/*
- * The cpu_dai->dma_data field is only used to communicate the
- * appropriate DMA parameters to the pcm driver hw_params()
+ * The snd_soc_pcm_stream->dma_data field is only used to communicate
+ * the appropriate DMA parameters to the pcm driver hw_params()
* function. It should not be used for other purposes
* as it is common to all substreams.
*/
- rtd->dai->cpu_dai->dma_data = dma_params;
+ snd_soc_dai_set_dma_data(rtd->dai->cpu_dai, substream, dma_params);
channels = params_channels(params);