linux-kernel - Re: [PATCH] max8907: fix use of possibly NULL idata

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Message-ID: <20120827164232.GH4339@opensource.wolfsonmicro.com>
Date:	Mon, 27 Aug 2012 09:42:34 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Liam Girdwood <lrg@...com>, Axel Lin <axel.lin@...il.com>,
	Laxman Dewangan <ldewangan@...dia.com>,
	Gyungoh Yoo <jack.yoo@...im-ic.com>,
	linux-kernel@...r.kernel.org, Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH] max8907: fix use of possibly NULL idata

On Thu, Aug 23, 2012 at 12:19:18PM -0600, Stephen Warren wrote:
> From: Stephen Warren <swarren@...dia.com>
> 
> If a regulator is not used by a board, it's quite legitimate not to
> provide platform data or a device tree node to configure it (i.e.
> regulator_init_data). In that case, during MAX8907 regulator's
> probe(), the idata variable will be NULL for that regulator. Prevent
> dereferincing it.

Applied, thanks.  Please do remember to use subject lines which match up
with the subsystem.
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