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dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()

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Add the missing unlock on the error handling path in function
imxdma_xfer_desc().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Wei Yongjun 2012-10-21 19:58:30 +08:00 • committed by Vinod Koul
commit 720dfd250e
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/imx-dma.c
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@ -474,8 +474,10 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
slot = i;
break;
}
if (slot < 0)
if (slot < 0) {
spin_unlock_irqrestore(&imxdma->lock, flags);
return -EBUSY;
}
imxdma->slots_2d[slot].xsr = d->x;
imxdma->slots_2d[slot].ysr = d->y;