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media: stm32-dcmi: catch dma submission error

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Test cookie return by dmaengine_submit() and return error if any.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hugues Fruchet 2017-08-22 10:41:08 -04:00 committed by Mauro Carvalho Chehab
parent ad3cdf3e1f
commit 134e15e681
1 changed files with 4 additions and 0 deletions
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4
drivers/media/platform/stm32/stm32-dcmi.c
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@ -295,6 +295,10 @@ static int dcmi_start_dma(struct stm32_dcmi *dcmi,
/* Push current DMA transaction in the pending queue */ /* Push current DMA transaction in the pending queue */
dcmi->dma_cookie = dmaengine_submit(desc); dcmi->dma_cookie = dmaengine_submit(desc);
if (dma_submit_error(dcmi->dma_cookie)) {
dev_err(dcmi->dev, "%s: DMA submission failed\n", __func__);
return -ENXIO;
}
dma_async_issue_pending(dcmi->dma_chan); dma_async_issue_pending(dcmi->dma_chan);