linux-kernel - Re: [PATCH 1/5] regmap: return ERR_PTR instead of NULL in regmap

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Message-ID: <20111114214455.GK6528@opensource.wolfsonmicro.com>
Date:	Mon, 14 Nov 2011 21:44:56 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] regmap: return ERR_PTR instead of NULL in regmap_init

On Mon, Nov 14, 2011 at 10:40:15AM +0100, Lars-Peter Clausen wrote:
> The regmap_init documentation states that it will either return a pointer to a
> valid regmap structure or a ERR_PTR in case of an error. Currently it returns a
> NULL pointer in case no bus or no config was given. Since NULL is not a
> ERR_PTR a caller might assume that it is a pointer to a valid regmap structure,
> so return a ERR_PTR(-EINVAL) instead.

Applied, thanks.
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