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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-06-22 14:15:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:26:57 +0200 |
| commit | 0430caf5ccc880dfacba544accbddc839d70ded1 (patch) | |
| tree | d693c1abd302953d0bbb22a41544bb13657456b5 | |
| parent | d238b2e06f390de4a3a15058a9e0c538fb6e35e8 (diff) | |
| download | linux-0430caf5ccc880dfacba544accbddc839d70ded1.tar.gz | |
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
[ Upstream commit c4c2b7644cc9a41f17a8cc8904efe3f66ae4c7ed ]
The d->chans[] array has d->dma_requests elements so the > should be
>= here.
Fixes: 8e6152bc660e ("dmaengine: Add hisilicon k3 DMA engine driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/dma/k3dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index 1ba2fd73852d27..0f0c06ab414b21 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -660,7 +660,7 @@ static struct dma_chan *k3_of_dma_simple_xlate(struct of_phandle_args *dma_spec, struct k3_dma_dev *d = ofdma->of_dma_data; unsigned int request = dma_spec->args[0]; - if (request > d->dma_requests) + if (request >= d->dma_requests) return NULL; return dma_get_slave_channel(&(d->chans[request].vc.chan)); |