dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()

The d->chans[] array has d->dma_requests elements so the > should be
>= here.

Fixes: 8e6152b ("dmaengine: Add hisilicon k3 DMA engine driver")
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

Author: Dan Carpenter

drivers/dma/k3dma.c

@@ -794,7 +794,7 @@ 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));