From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: linux-kernel@vger.kernel.org, David Vrabel <dvrabel@arcom.com>,
Greg Kroah-Hartman <gregkh@suse.de>,
David Brownell <dbrownell@users.sourceforge.net>,
Grant Likely <grant.likely@secretlab.ca>,
Kumar Gala <galak@kernel.crashing.org>,
Andrew Morton <akpm@linux-foundation.org>,
spi-devel-general@lists.sourceforge.net
Subject: Re: [PATCH 6/7] spi/mpc8xxx: don't check platform_get_irq's return value against zero
Date: Wed, 16 Dec 2009 19:32:29 +0300 [thread overview]
Message-ID: <20091216163229.GA26350@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <1260979809-24811-6-git-send-email-u.kleine-koenig@pengutronix.de>
On Wed, Dec 16, 2009 at 05:10:08PM +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@pengutronix.de>
> ---
Noooooo... :-(
Please revert 305b3228f9ff4d59f49e6d34a7034d44ee8ce2f0 instead,
and fix platforms to remap HWIRQ0 to something that is not VIRQ0.
IRQ0 is invalid for everything that is outside of arch/*.
http://lkml.org/lkml/2005/11/22/159
http://lkml.org/lkml/2005/11/22/213
http://lkml.org/lkml/2005/11/22/227
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2009-12-16 16:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1260979809-24811-1-git-send-email-u.kleine-koenig@pengutronix.de>
[not found] ` <1260979809-24811-2-git-send-email-u.kleine-koenig@pengutronix.de>
[not found] ` <1260979809-24811-3-git-send-email-u.kleine-koenig@pengutronix.de>
[not found] ` <1260979809-24811-4-git-send-email-u.kleine-koenig@pengutronix.de>
[not found] ` <1260979809-24811-5-git-send-email-u.kleine-koenig@pengutronix.de>
2009-12-16 16:10 ` [PATCH 6/7] spi/mpc8xxx: don't check platform_get_irq's return value against zero Uwe Kleine-König
2009-12-16 16:32 ` Anton Vorontsov [this message]
2009-12-16 17:49 ` Uwe Kleine-König
2009-12-16 18:20 ` Anton Vorontsov
2009-12-16 19:18 ` Uwe Kleine-König
2009-12-16 19:37 ` Anton Vorontsov
2009-12-16 19:51 ` Anton Vorontsov
2009-12-17 13:05 ` Uwe Kleine-König
2009-12-17 16:25 ` Anton Vorontsov
2009-12-16 18:20 ` David Vrabel
2009-12-17 16:39 ` Anton Vorontsov
2009-12-19 15:13 ` [PATCH] " Uwe Kleine-König
2010-01-13 11:05 ` [RESEND PATCH 5/5] " Uwe Kleine-König
2010-01-13 11:17 ` Anton Vorontsov
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