linux-kernel - Re: [PATCH RESENT#2] [AVR32] don't check platform_get

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Message-ID: <20110209104310.71c12826@lxorguk.ukuu.org.uk>
Date:	Wed, 9 Feb 2011 10:43:10 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>,
	David Vrabel <dvrabel@...om.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Haavard Skinnemoen <hskinnemoen@...el.com>
Subject: Re: [PATCH RESENT#2] [AVR32] don't check platform_get_irq's return
 value against zero

On Wed,  9 Feb 2011 11:28:04 +0100
Uwe Kleine-König  <u.kleine-koenig@...gutronix.de> wrote:

> platform_get_irq returns -ENXIO on failure, so !int_irq was probably
> always true.  Better use (int)int_irq <= 0.  Note that a return value of
> zero is still handled as error even though this could mean irq0.

We don't have an IRQ 0 in Linux so that's fine.
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