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ASoC: samsung: Check to see if we managed to allocate a channel
author
Mark Brown
<broonie@linaro.org>
Mon, 19 Aug 2013 19:33:20 +0000
(20:33 +0100)
committer
Mark Brown
<broonie@linaro.org>
Tue, 20 Aug 2013 09:36:00 +0000
(10:36 +0100)
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
sound/soc/samsung/dma.c
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diff --git
a/sound/soc/samsung/dma.c
b/sound/soc/samsung/dma.c
index
21b7926
..
50c1eb6
100644
(file)
--- a/
sound/soc/samsung/dma.c
+++ b/
sound/soc/samsung/dma.c
@@
-176,6
+176,10
@@
static int dma_hw_params(struct snd_pcm_substream *substream,
prtd->params->ch = prtd->params->ops->request(
prtd->params->channel, &req, rtd->cpu_dai->dev,
prtd->params->ch_name);
+ if (!prtd->params->ch) {
+ pr_err("Failed to allocate DMA channel\n");
+ return -ENXIO;
+ }
prtd->params->ops->config(prtd->params->ch, &config);
}