From: Shawn Guo <shawn.guo@freescale.com>
Date: Wed, 19 Jan 2011 21:50:36 +0000 (+0800)
Subject: dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of sdma_prep_slave_sg()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4b2ce9ddb370c4eb573540611c347d78ac4b54a0;p=linux-beck.git

dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of sdma_prep_slave_sg()

sdma_prep_dma_cyclic() sets sdmac->status to DMA_ERROR in err_out,
and sdma_prep_slave_sg() needs to do the same.  Otherwise,
sdmac->status stays at DMA_IN_PROGRESS, which will make the function
return immediately next time it gets called.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index cf8cc0b8e7f7..6fc04d85be6b 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -947,6 +947,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
 
 	return &sdmac->desc;
 err_out:
+	sdmac->status = DMA_ERROR;
 	return NULL;
 }