[PATCH -next] dmaengine: sun4i: Use list_move_tail instead of list_del/list_add_tail

[Zou Wei]

Using list_move_tail() instead of list_del() + list_add_tail().

Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Zou Wei <zou_wei at huawei.com>
---
 drivers/dma/sun4i-dma.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
index e8b6633..93f1645 100644
--- a/drivers/dma/sun4i-dma.c
+++ b/drivers/dma/sun4i-dma.c
@@ -1042,9 +1042,8 @@ static irqreturn_t sun4i_dma_interrupt(int irq, void *dev_id)
 			 * Move the promise into the completed list now that
 			 * we're done with it
 			 */
-			list_del(&vchan->processing->list);
-			list_add_tail(&vchan->processing->list,
-				      &contract->completed_demands);
+			list_move_tail(&vchan->processing->list,
+				       &contract->completed_demands);
 
 			/*
 			 * Cyclic DMA transfers are special:
-- 
2.6.2