From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 18 May 2011 10:48:00 +0000 (+0200)
Subject: genirq: Uninline and sanity check generic_handle_irq()
X-Git-Tag: v3.0-rc1~405^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe12bc2c996d3e492b2920e32ac79f7bbae3e15d;p=pandora-kernel.git

genirq: Uninline and sanity check generic_handle_irq()

generic_handle_irq() is missing a NULL pointer check for the result of
irq_to_desc. This was a not a big problem, but we want to expose it to
drivers, so we better have sanity checks in place. Add a return value
as well, which indicates that the irq number was valid and the handler
was invoked.

Based on the pure code move from Jonathan Cameron.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
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