linux-kernel - Re: [PATCH][V2] UBI: block: fix dereference on uninitialized dev

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Message-ID: <20140821191246.GA13322@arch.cereza>
Date:	Thu, 21 Aug 2014 16:12:46 -0300
From:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
To:	Colin King <colin.king@...onical.com>
Cc:	Artem Bityutskiy <dedekind1@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][V2] UBI: block: fix dereference on uninitialized dev

On 20 Aug 10:19 AM, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> commit 4df38926f337 ("UBI: block: Avoid disk size integer overflow")
> introduced a dereference on dev (which is not initialized at that
> point) when printing a warning message.  Re-order disk_capacity check
> after the dev is found.
> 
> Found by cppcheck:
>  [drivers/mtd/ubi/block.c:509]: (error) Uninitialized variable: dev
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Acked-by: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>

Thanks a lot,
-- 
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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