public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* [PATCH 1/1] dma: imx-dma: Remove redundant NULL check
@ 2013-09-02  7:51 Sachin Kamat
  2013-09-02  8:19 ` Sascha Hauer
  2013-09-02 10:46 ` Vinod Koul
  0 siblings, 2 replies; 3+ messages in thread
From: Sachin Kamat @ 2013-09-02  7:51 UTC (permalink / raw)
  To: linux-kernel; +Cc: vinod.koul, djbw, sachin.kamat, Sascha Hauer

kfree on a NULL pointer is a no-op. Null pointer check is
not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/dma/imx-dma.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index ff2aab9..78f8ca5 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -805,10 +805,8 @@ static void imxdma_free_chan_resources(struct dma_chan *chan)
 	}
 	INIT_LIST_HEAD(&imxdmac->ld_free);
 
-	if (imxdmac->sg_list) {
-		kfree(imxdmac->sg_list);
-		imxdmac->sg_list = NULL;
-	}
+	kfree(imxdmac->sg_list);
+	imxdmac->sg_list = NULL;
 }
 
 static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH 1/1] dma: imx-dma: Remove redundant NULL check
  2013-09-02  7:51 [PATCH 1/1] dma: imx-dma: Remove redundant NULL check Sachin Kamat
@ 2013-09-02  8:19 ` Sascha Hauer
  2013-09-02 10:46 ` Vinod Koul
  1 sibling, 0 replies; 3+ messages in thread
From: Sascha Hauer @ 2013-09-02  8:19 UTC (permalink / raw)
  To: Sachin Kamat; +Cc: linux-kernel, vinod.koul, djbw

On Mon, Sep 02, 2013 at 01:21:18PM +0530, Sachin Kamat wrote:
> kfree on a NULL pointer is a no-op. Null pointer check is
> not necessary.
> 
> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>

Acked-by: Sascha Hauer <s.hauer@pengutronix.de>

Sascha

> ---
>  drivers/dma/imx-dma.c |    6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
> index ff2aab9..78f8ca5 100644
> --- a/drivers/dma/imx-dma.c
> +++ b/drivers/dma/imx-dma.c
> @@ -805,10 +805,8 @@ static void imxdma_free_chan_resources(struct dma_chan *chan)
>  	}
>  	INIT_LIST_HEAD(&imxdmac->ld_free);
>  
> -	if (imxdmac->sg_list) {
> -		kfree(imxdmac->sg_list);
> -		imxdmac->sg_list = NULL;
> -	}
> +	kfree(imxdmac->sg_list);
> +	imxdmac->sg_list = NULL;
>  }
>  
>  static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
> -- 
> 1.7.9.5
> 
> 

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH 1/1] dma: imx-dma: Remove redundant NULL check
  2013-09-02  7:51 [PATCH 1/1] dma: imx-dma: Remove redundant NULL check Sachin Kamat
  2013-09-02  8:19 ` Sascha Hauer
@ 2013-09-02 10:46 ` Vinod Koul
  1 sibling, 0 replies; 3+ messages in thread
From: Vinod Koul @ 2013-09-02 10:46 UTC (permalink / raw)
  To: Sachin Kamat; +Cc: linux-kernel, djbw, Sascha Hauer

On Mon, Sep 02, 2013 at 01:21:18PM +0530, Sachin Kamat wrote:
> kfree on a NULL pointer is a no-op. Null pointer check is
> not necessary.

Applied, thanks

~Vinod

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-09-02 11:32 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-02  7:51 [PATCH 1/1] dma: imx-dma: Remove redundant NULL check Sachin Kamat
2013-09-02  8:19 ` Sascha Hauer
2013-09-02 10:46 ` Vinod Koul

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox