linux-kernel - Re: [Query]: Regmap v3.8: Compilation Warning: regmap_read

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Message-ID: <20130220121441.GB2726@opensource.wolfsonmicro.com>
Date:	Wed, 20 Feb 2013 12:14:42 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Query]: Regmap v3.8: Compilation Warning: regmap_read_debugfs()

On Wed, Feb 20, 2013 at 01:23:09PM +0530, Viresh Kumar wrote:

> I am unable to understand why this warning is coming and that too on
> line 180 (as that doesn't use this variable). I can't see how this variable is
> used uninitialized.

The compiler isn't as smart about code flow analysis as it thinks it is,
the code is safe.  There's a patch going to Linus this merge window
which shuts up the warning.

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