linux-kernel - Re: [PATCH 7/7] ASoC: sh: FSI:: don't check platform_get

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Message-ID: <20091222123440.GB19056@opensource.wolfsonmicro.com>
Date:	Tue, 22 Dec 2009 12:34:40 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org, David Vrabel <dvrabel@...om.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Kuninori Morimoto <morimoto.kuninori@...esas.com>,
	Paul Mundt <lethal@...ux-sh.org>, alsa-devel@...a-project.org
Subject: Re: [PATCH 7/7] ASoC: sh: FSI:: don't check platform_get_irq's
	return value against zero

On Wed, Dec 16, 2009 at 05:10:09PM +0100, Uwe Kleine-König wrote:
> platform_get_irq returns -ENXIO on failure, so !irq was probably
> always true.  Better use (int)irq <= 0.  Note that a return value of
> zero is still handled as error even though this could mean irq0.
> 
> This is a followup to 305b3228f9ff4d59f49e6d34a7034d44ee8ce2f0 that
> changed the return value of platform_get_irq from 0 to -ENXIO on error.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Applied, thanks.
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