On Tue, 2010-10-19 at 08:45 +0200, Uwe Kleine-König wrote: 
quoted text
> On Wed, Dec 16, 2009 at 05:10:03PM +0100, Uwe Kleine-König 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.

Indeed, but external interrupts are numbered after the internal
interrupt lines, so in practice this does not happen. At least for now
with the AP700X series.

quoted text
> > This is a followup to 305b3228f9ff4d59f49e6d34a7034d44ee8ce2f0 that
> > changed the return value of platform_get_irq from 0 to -ENXIO on error.

Thanks for this fix.

quoted text
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> > Cc: David Vrabel <dvrabel@arcom.com>
> > Cc: Greg Kroah-Hartman <gregkh@suse.de>
> > Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>

Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>

<snipp>

-- 
Hans-Christian Egtvedt

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