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* [PATCH -next] dmaengine: ti: k3-udma: Use PTR_ERR_OR_ZERO() to simplify code
@ 2020-05-06  9:25 Samuel Zou
  2020-05-13 14:52 ` Vinod Koul
  2020-05-14  8:33 ` Peter Ujfalusi
  0 siblings, 2 replies; 4+ messages in thread
From: Samuel Zou @ 2020-05-06  9:25 UTC (permalink / raw)
  To: dan.j.williams, vkoul; +Cc: dmaengine, linux-kernel, Samuel Zou

Fixes coccicheck warnings:

drivers/dma/ti/k3-udma.c:1294:1-3: WARNING: PTR_ERR_OR_ZERO can be used
drivers/dma/ti/k3-udma.c:1311:1-3: WARNING: PTR_ERR_OR_ZERO can be used
drivers/dma/ti/k3-udma.c:1376:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
---
 drivers/dma/ti/k3-udma.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 0a04174..f5775ca 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -1291,10 +1291,8 @@ static int udma_get_tchan(struct udma_chan *uc)
 	}
 
 	uc->tchan = __udma_reserve_tchan(ud, uc->config.channel_tpl, -1);
-	if (IS_ERR(uc->tchan))
-		return PTR_ERR(uc->tchan);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(uc->tchan);
 }
 
 static int udma_get_rchan(struct udma_chan *uc)
@@ -1308,10 +1306,8 @@ static int udma_get_rchan(struct udma_chan *uc)
 	}
 
 	uc->rchan = __udma_reserve_rchan(ud, uc->config.channel_tpl, -1);
-	if (IS_ERR(uc->rchan))
-		return PTR_ERR(uc->rchan);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(uc->rchan);
 }
 
 static int udma_get_chan_pair(struct udma_chan *uc)
@@ -1373,10 +1369,8 @@ static int udma_get_rflow(struct udma_chan *uc, int flow_id)
 	}
 
 	uc->rflow = __udma_get_rflow(ud, flow_id);
-	if (IS_ERR(uc->rflow))
-		return PTR_ERR(uc->rflow);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(uc->rflow);
 }
 
 static void udma_put_rchan(struct udma_chan *uc)
-- 
2.6.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-05-14  9:09 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-06  9:25 [PATCH -next] dmaengine: ti: k3-udma: Use PTR_ERR_OR_ZERO() to simplify code Samuel Zou
2020-05-13 14:52 ` Vinod Koul
2020-05-14  8:33 ` Peter Ujfalusi
2020-05-14  9:09   ` Samuel Zou

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