dmaengine: sirf: off by one in of_dma_sirfsoc_xlate()

The ">" here should be ">=" or we are one step beyond the end of the
sdma->channels[] array.

Fixes: 2e041c94628c ('dmaengine: sirf: enable generic dt binding for dma channels')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index a1bd829..03f7820 100644 (file)
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -666,7 +666,7 @@ static struct dma_chan *of_dma_sirfsoc_xlate(struct of_phandle_args *dma_spec,
        struct sirfsoc_dma *sdma = ofdma->of_dma_data;
        unsigned int request = dma_spec->args[0];
 
-       if (request > SIRFSOC_DMA_CHANNELS)
+       if (request >= SIRFSOC_DMA_CHANNELS)
                return NULL;
 
        return dma_get_slave_channel(&sdma->channels[request].chan);