From: Mark Brown <broonie@kernel.org>
To: Sangbeom Kim <sbkim73@samsung.com>, Liam Girdwood <lgirdwood@gmail.com>
Cc: alsa-devel@alsa-project.org, linux-samsung-soc@vger.kernel.org,
linaro-kernel@lists.linaro.org, Mark Brown <broonie@linaro.org>
Subject: [PATCH] ASoC: samsung: Check to see if we managed to allocate a channel
Date: Mon, 19 Aug 2013 20:34:47 +0100 [thread overview]
Message-ID: <1376940887-26938-1-git-send-email-broonie@kernel.org> (raw)
From: Mark Brown <broonie@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
sound/soc/samsung/dma.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index 6e2b2b4..d54df85 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -183,6 +183,10 @@ 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);
}
--
1.8.4.rc3
next reply other threads:[~2013-08-19 19:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-19 19:34 Mark Brown [this message]
2013-08-19 23:13 ` [alsa-devel] [PATCH] ASoC: samsung: Check to see if we managed to allocate a channel Sangbeom Kim
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