netdev - Re: [Stlinux-devel] [PATCH linux-stm 2/4] net:stmmac: fix broken stmmac_pltfr

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Message-Id: <20120831.161254.1967435351723331404.davem@davemloft.net>
Date:	Fri, 31 Aug 2012 16:12:54 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	srinivas.kandagatla@...com
Cc:	netdev@...r.kernel.org, peppe.cavallaro@...com
Subject: Re: [Stlinux-devel] [PATCH linux-stm 2/4] net:stmmac: fix broken
 stmmac_pltfr_remove.

From: Srinivas KANDAGATLA <srinivas.kandagatla@...com>
Date: Thu, 30 Aug 2012 16:50:19 +0100

> From: Srinivas Kandagatla <srinivas.kandagatla@...com>
> 
> This patch fixes stmmac_pltfr_remove function, which is broken because,
> it is accessing plat variable via freed memory priv pointer which gets
> freed by free_netdev called from stmmac_dvr_remove.
> 
> In short this patch caches the plat pointer in local variable before
> calling stmmac_dvr_remove to prevent code accessing freed memory.
> 
> Without this patch any attempt to remove the stmmac device will fail as
> below:
 ...
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...com>

Applied.
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