* [PATCH 3/3] dma: sirf: use NULL instead of 0
@ 2013-08-06 10:37 Jingoo Han
0 siblings, 0 replies; only message in thread
From: Jingoo Han @ 2013-08-06 10:37 UTC (permalink / raw)
To: 'Vinod Koul'
Cc: 'Dan Williams', Barry Song, 'Rongjun Ying', linux-kernel
sirfsoc_dma_prep_cyclic() returns pointer, thus NULL should be
used instead of 0 in order to fix the following sparse warning:
drivers/dma/sirf-dma.c:598:24: warning: Using plain integer as NULL pointer
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/dma/sirf-dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index 716b23e..973ecd0 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -595,7 +595,7 @@ sirfsoc_dma_prep_cyclic(struct dma_chan *chan, dma_addr_t addr,
spin_unlock_irqrestore(&schan->lock, iflags);
if (!sdesc)
- return 0;
+ return NULL;
/* Place descriptor in prepared list */
spin_lock_irqsave(&schan->lock, iflags);
--
1.7.10.4
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