linux-kernel - Re: [PATCH] regulator: core: Clear constraints pointer after free on error path

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Message-ID: <20160126153454.GC6042@sirena.org.uk>
Date:	Tue, 26 Jan 2016 15:34:54 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:	lgirdwood@...il.com, linux-kernel@...r.kernel.org,
	patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH] regulator: core: Clear constraints pointer after free on
 error path

On Tue, Jan 26, 2016 at 03:14:16PM +0000, Charles Keepax wrote:

> As we now free the constraints in regulator_dev_release we will still
> call free on the constraints pointer even if we went down an error path
> in regulator_register, as such we need to clear to the pointer to ensure
> the kfree in regulator_dev_release is a no-op.

No, this is just making things worse - if we're doing the free in the
release we should be doing the free in the release not sometimes maybey
in the release.

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