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authorMark Brown <broonie@linaro.org>2014-01-20 11:50:41 +0000
committerMark Brown <broonie@linaro.org>2014-01-20 11:50:41 +0000
commit31824e6554a4f96a9830fc9d4a15de8a6539857a (patch)
tree982b652835fba225f7154092484ffa3af3ab3c6c /sound
parent4cfa1a385fc57999180eb6720ee2487f549f4e03 (diff)
parentec4f2857cd41b7c5af6350e7ab2a8fe1874dae59 (diff)
Merge remote-tracking branch 'asoc/topic/dma' into asoc-next
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-generic-dmaengine-pcm.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 560a7787d8a7..5bace124ef43 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -176,17 +176,20 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel(
{
struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
struct snd_dmaengine_dai_dma_data *dma_data;
+ dma_filter_fn fn = NULL;
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0])
return pcm->chan[0];
- if (pcm->config->compat_request_channel)
+ if (pcm->config && pcm->config->compat_request_channel)
return pcm->config->compat_request_channel(rtd, substream);
- return snd_dmaengine_pcm_request_channel(pcm->config->compat_filter_fn,
- dma_data->filter_data);
+ if (pcm->config)
+ fn = pcm->config->compat_filter_fn;
+
+ return snd_dmaengine_pcm_request_channel(fn, dma_data->filter_data);
}
static bool dmaengine_pcm_can_report_residue(struct dma_chan *chan)