[PATCH] dma: sh/shdma-base.c: remove unnecessary null pointer check

[Cong Ding]

the variable chan is dereferenced in line 635, so it is no reason to check
null again in line 641.

Signed-off-by: Cong Ding <dinggnu@xxxxxxxxx>
---
 drivers/dma/sh/shdma-base.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index f4cd946..4acb85a 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -638,9 +638,6 @@ static int shdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 	unsigned long flags;
 	int ret;
 
-	if (!chan)
-		return -EINVAL;
-
 	switch (cmd) {
 	case DMA_TERMINATE_ALL:
 		spin_lock_irqsave(&schan->chan_lock, flags);
-- 
1.7.10.4

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