linux-kernel - Re: [PATCH] regulator: tps65910: Fix array access out of bounds bug

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Message-ID: <1311331647.3312.9.camel@odin>
Date:	Fri, 22 Jul 2011 11:47:27 +0100
From:	Liam Girdwood <lrg@...nel.org>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel@...r.kernel.org, Graeme Gregory <gg@...mlogic.co.uk>,
	Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>,
	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH] regulator: tps65910: Fix array access out of bounds bug

On Mon, 2011-07-11 at 09:57 +0800, Axel Lin wrote:
> For tps65910, the number of regulator is 13. ( ARRAY_SIZE(tps65910_regs) is 13)
> For tps65911, the number of regulator is 12. ( ARRAY_SIZE(tps65911_regs) is 12)
> If we are using this driver for tps65911,
> we hit array access out of bounds bug in tps65910_probe() because
> current implementation always assume the number of regulator is 13 and
> thus it will access tps65911_regs[12].
> 
> Fix it by setting correct num_regulators for both chips in tps65910_probe(),
> and allocated neccessay memory accordingly.
> 
> Signed-off-by: Axel Lin <axel.lin@...il.com>


Applied.

Thanks

Liam

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