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* [PATCH] dma: imx-dma: Remove redundant NULL check before kfree
@ 2013-02-24 23:16 Syam Sidhardhan
  2013-03-21  9:07 ` Vinod Koul
  0 siblings, 1 reply; 2+ messages in thread
From: Syam Sidhardhan @ 2013-02-24 23:16 UTC (permalink / raw)
  To: linux-kernel; +Cc: syamsidhardh, vinod.koul, djbw

kfree on NULL pointer is a no-op.

Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
---
 drivers/dma/imx-dma.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 70b8975..0988583 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -859,8 +859,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
 
 	desc = list_first_entry(&imxdmac->ld_free, struct imxdma_desc, node);
 
-	if (imxdmac->sg_list)
-		kfree(imxdmac->sg_list);
+	kfree(imxdmac->sg_list);
 
 	imxdmac->sg_list = kcalloc(periods + 1,
 			sizeof(struct scatterlist), GFP_KERNEL);
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] dma: imx-dma: Remove redundant NULL check before kfree
  2013-02-24 23:16 [PATCH] dma: imx-dma: Remove redundant NULL check before kfree Syam Sidhardhan
@ 2013-03-21  9:07 ` Vinod Koul
  0 siblings, 0 replies; 2+ messages in thread
From: Vinod Koul @ 2013-03-21  9:07 UTC (permalink / raw)
  To: Syam Sidhardhan; +Cc: linux-kernel, djbw

On Mon, Feb 25, 2013 at 04:46:26AM +0530, Syam Sidhardhan wrote:
> kfree on NULL pointer is a no-op.
> 
> Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Applied thanks
> ---
>  drivers/dma/imx-dma.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
> index 70b8975..0988583 100644
> --- a/drivers/dma/imx-dma.c
> +++ b/drivers/dma/imx-dma.c
> @@ -859,8 +859,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
>  
>  	desc = list_first_entry(&imxdmac->ld_free, struct imxdma_desc, node);
>  
> -	if (imxdmac->sg_list)
> -		kfree(imxdmac->sg_list);
> +	kfree(imxdmac->sg_list);
>  
>  	imxdmac->sg_list = kcalloc(periods + 1,
>  			sizeof(struct scatterlist), GFP_KERNEL);
> -- 
> 1.7.9.5
> 

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2013-03-21  9:32 UTC | newest]

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2013-02-24 23:16 [PATCH] dma: imx-dma: Remove redundant NULL check before kfree Syam Sidhardhan
2013-03-21  9:07 ` Vinod Koul

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