[PATCH] dmaengine: pl08x: remove unneeded variable: "retval". Return "NULL"

[Haowen Bai]

Unneeded variable: "retval". Return "NULL" , so we have to make code clear.

Signed-off-by: Haowen Bai <baihaowen@xxxxxxxxx>
---
 drivers/dma/amba-pl08x.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index a24882b..c70552a 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1538,9 +1538,7 @@ static void pl08x_free_chan_resources(struct dma_chan *chan)
 static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt(
 		struct dma_chan *chan, unsigned long flags)
 {
-	struct dma_async_tx_descriptor *retval = NULL;
-
-	return retval;
+	return NULL;
 }
 
 /*
-- 
2.7.4