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Subject[PATCH v1 1/5] [media] stm32-dcmi: catch dma submission error
Date
Test cookie return by dmaengine_submit() and return error if any.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
---
drivers/media/platform/stm32/stm32-dcmi.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index 24ef888..716b3db 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -295,6 +295,10 @@ static int dcmi_start_dma(struct stm32_dcmi *dcmi,

/* Push current DMA transaction in the pending queue */
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);

--
1.9.1
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