linux-kernel - Re: [PATCH] mfd: Fix fencepost error in reg cache access check

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Message-ID: <20100416185003.GB24707@opensource.wolfsonmicro.com>
Date:	Sat, 17 Apr 2010 03:50:04 +0900
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Phil Carmody <ext-phil.2.carmody@...ia.com>
Cc:	sameo@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: Fix fencepost error in reg cache access check

On Fri, Apr 16, 2010 at 03:00:09PM +0300, Phil Carmody wrote:
> From: Phil Carmody <ext-phil.2.carmody@...ia.com>
> 
> Accessing num_reg elements in the interval [reg .. reg+num_regs)
> is permitted if (reg+numregs <= array size), so barf when that
> excluded upper bound is > array size. The prior -1 would give
> access to one too many elements.

Acked-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
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