diff mbox

[-next] dmaengine: st_fdma: Fix the error return code in st_fdma_probe()

Message ID 1476883430-11970-1-git-send-email-weiyj.lk@gmail.com (mailing list archive)
State Accepted
Headers show

Commit Message

Wei Yongjun Oct. 19, 2016, 1:23 p.m. UTC 
From: Wei Yongjun <weiyongjun1@huawei.com>

In case of error, the function st_slim_rproc_alloc() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/dma/st_fdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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Comments

Peter Griffin Oct. 19, 2016, 3:59 p.m. UTC | #1 
Hi Wei,

On Wed, 19 Oct 2016, Wei Yongjun wrote:

> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> In case of error, the function st_slim_rproc_alloc() returns ERR_PTR()
> and never returns NULL. The NULL test in the return value check should
> be replaced with IS_ERR().
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---

Good spot.

Acked-by: Peter Griffin <peter.griffin@linaro.org>

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Vinod Koul Oct. 19, 2016, 5 p.m. UTC | #2 
On Wed, Oct 19, 2016 at 01:23:50PM +0000, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> In case of error, the function st_slim_rproc_alloc() returns ERR_PTR()
> and never returns NULL. The NULL test in the return value check should
> be replaced with IS_ERR().
> 

Applied, thanks
diff mbox

Patch

diff --git a/drivers/dma/st_fdma.c b/drivers/dma/st_fdma.c
index 515e1d4..a66a57b 100644
--- a/drivers/dma/st_fdma.c
+++ b/drivers/dma/st_fdma.c
@@ -802,7 +802,7 @@  static int st_fdma_probe(struct platform_device *pdev)
 	}
 
 	fdev->slim_rproc = st_slim_rproc_alloc(pdev, fdev->fw_name);
-	if (!fdev->slim_rproc) {
+	if (IS_ERR(fdev->slim_rproc)) {
 		ret = PTR_ERR(fdev->slim_rproc);
 		dev_err(&pdev->dev, "slim_rproc_alloc failed (%d)\n", ret);
 		goto err;