Messages in this thread Patch in this message | | | From | Vincent Stehlé <> | Subject | [PATCH] dmaengine: k3dma: fix off by one | Date | Wed, 21 Sep 2016 22:16:55 +0200 |
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In k3_of_dma_simple_xlate(), the d->chans[] array has d->dma_requests elements so > should be >=.
Fixes: 8e6152bc660e69f5 ("dmaengine: Add hisilicon k3 DMA engine driver") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Zhangfei Gao <zhangfei.gao@linaro.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: stable@vger.kernel.org --- drivers/dma/k3dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index aabcb79..cd7f67b 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -792,7 +792,7 @@ 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)); -- 2.9.3
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