[PATCH 4.14 106/217] dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpen...@oracle.com>

[ 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.carpen...@oracle.com>
Signed-off-by: Vinod Koul <vk...@kernel.org>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/dma/k3dma.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -787,7 +787,7 @@ static struct dma_chan *k3_of_dma_simple
        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));