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Date: Mon, 11 Jun 2018 11:50:25 +0200
From: Hugues Fruchet <hugues.fruchet@...com>
To: Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
"Hans Verkuil" <hverkuil@...all.nl>
CC: <linux-media@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Benjamin Gaignard <benjamin.gaignard@...aro.org>,
Yannick Fertre <yannick.fertre@...com>,
Hugues Fruchet <hugues.fruchet@...com>
Subject: [PATCH 2/4] media: stm32-dcmi: return buffer in error state on dma error
Return buffer to V4L2 in error state if DMA error occurs.
Signed-off-by: Hugues Fruchet <hugues.fruchet@...com>
---
drivers/media/platform/stm32/stm32-dcmi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index a3fbfac..6ccf195 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -262,6 +262,9 @@ static void dcmi_dma_callback(void *param)
break;
case DMA_ERROR:
dev_err(dcmi->dev, "%s: Received DMA_ERROR\n", __func__);
+
+ /* Return buffer to V4L2 in error state */
+ dcmi_buffer_done(dcmi, buf, 0, -EIO);
break;
case DMA_COMPLETE:
dev_dbg(dcmi->dev, "%s: Received DMA_COMPLETE\n", __func__);
--
1.9.1
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