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authorVinod Koul <vinod.koul@intel.com>2016-04-16 19:15:26 +0200
committerVinod Koul <vinod.koul@intel.com>2016-04-16 19:15:26 +0200
commit1cc3334e2e0263b02163a9edd43d0448ac00770c (patch)
treec034f6fa034d8e09edc3181bbda3289fb327c918 /drivers/dma
parentMerge branch 'fix/omap' into fixes (diff)
parentdmaengine: vdma: don't crash when bad channel is requested (diff)
downloadlinux-1cc3334e2e0263b02163a9edd43d0448ac00770c.tar.xz
linux-1cc3334e2e0263b02163a9edd43d0448ac00770c.zip
Merge branch 'fix/xilinx' into fixes
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/xilinx/xilinx_vdma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/xilinx/xilinx_vdma.c b/drivers/dma/xilinx/xilinx_vdma.c
index 0ee0321868d3..ef67f278e076 100644
--- a/drivers/dma/xilinx/xilinx_vdma.c
+++ b/drivers/dma/xilinx/xilinx_vdma.c
@@ -1236,7 +1236,7 @@ static struct dma_chan *of_dma_xilinx_xlate(struct of_phandle_args *dma_spec,
struct xilinx_vdma_device *xdev = ofdma->of_dma_data;
int chan_id = dma_spec->args[0];
- if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE)
+ if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE || !xdev->chan[chan_id])
return NULL;
return dma_get_slave_channel(&xdev->chan[chan_id]->common);