linux-kernel - Re: [PATCH] ipv6: fix ifnullfree.cocci warnings

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Message-Id: <20150909.172127.1527580619674387572.davem@davemloft.net>
Date:	Wed, 09 Sep 2015 17:21:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	fengguang.wu@...el.com
Cc:	roopa@...ulusnetworks.com, kbuild-all@...org,
	nikolay@...ulusnetworks.com, netdev@...r.kernel.org,
	kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ipv6: fix ifnullfree.cocci warnings

From: kbuild test robot <fengguang.wu@...el.com>
Date: Thu, 10 Sep 2015 06:57:12 +0800

> net/ipv6/route.c:2946:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
> 
>  NULL check before some freeing functions is not needed.
> 
>  Based on checkpatch warning
>  "kfree(NULL) is safe this check is probably not required"
>  and kfreeaddr.cocci by Julia Lawall.
> 
> Generated by: scripts/coccinelle/free/ifnullfree.cocci
> 
> CC: Roopa Prabhu <roopa@...ulusnetworks.com>
> Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>

Applied, thanks.
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