linux-kernel - Re: [PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <m3poyyz2yn.fsf@t19.piap.pl>
Date:	Wed, 25 Nov 2015 13:19:12 +0100
From:	khalasa@...p.pl (Krzysztof Hałasa)
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] ixp4xx_eth: Delete an unnecessary check before the function call "dma_pool_destroy"

SF Markus Elfring <elfring@...rs.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@...p.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@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/