Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1270026 > unrolled thread

[PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool_destroy"

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [PATCH] ixp4xx_eth: Delete an unnecessary check before the function  call "dma_pool_destroy" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-16 12:30 +0100
    Re: [PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool_destroy" khalasa@piap.pl (Krzysztof Hałasa) - 2015-11-25 13:20 +0100

#1270026 — [PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool_destroy"

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 16 Nov 2015 12:23:23 +0100

The dma_pool_destroy() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 5138407..6705951 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1192,7 +1192,7 @@ static void destroy_queues(struct port *port)
 		port->desc_tab = NULL;
 	}
 
-	if (!ports_open && dma_pool) {
+	if (!ports_open) {
 		dma_pool_destroy(dma_pool);
 		dma_pool = NULL;
 	}
-- 
2.6.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [next] | [standalone]

#1277318 — Re: [PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool_destroy"

SF Markus Elfring <elfring@users.sourceforge.net> writes:

> The dma_pool_destroy() function tests whether its argument is NULL
> and then returns immediately. Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.

> --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
> +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
> @@ -1192,7 +1192,7 @@ static void destroy_queues(struct port *port)
>  		port->desc_tab = NULL;
>  	}
>  
> -	if (!ports_open && dma_pool) {
> +	if (!ports_open) {
>  		dma_pool_destroy(dma_pool);
>  		dma_pool = NULL;
>  	}

Acked-by: Krzysztof Halasa <khalasa@piap.pl>
-- 
Krzysztof Halasa

Industrial Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web