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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-10-21 19:58:30 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-31 10:10:21 -0700
commitfbec5144b1a52c0d81db87626e802a64fd5a9a24 (patch)
treee06fd516deeb8b96945b117be808202a9f0627d9
parent7a263f0c7f4acdb1b58cf0e59e6a941b819bd550 (diff)
downloadlinux-linaro-stable-fbec5144b1a52c0d81db87626e802a64fd5a9a24.tar.gz
dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()
commit 720dfd250e48a8c7fd1b2b8645955413989c4ee0 upstream. Add the missing unlock on the error handling path in function imxdma_xfer_desc(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/dma/imx-dma.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 5084975d793c..8aa91132e9ab 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -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;