| From foo@baz Wed Aug 22 09:42:09 CEST 2018 |
| From: Dan Carpenter <dan.carpenter@oracle.com> |
| Date: Fri, 22 Jun 2018 14:15:47 +0300 |
| Subject: dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate() |
| |
| From: Dan Carpenter <dan.carpenter@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.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> |
| --- |
| drivers/dma/k3dma.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/dma/k3dma.c |
| +++ b/drivers/dma/k3dma.c |
| @@ -792,7 +792,7 @@ 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)); |
