From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 22 Oct 2010 12:47:57 +0000 (+0200)
Subject: genirq: Warn if enable_irq is called before irq is set up
X-Git-Tag: v2.6.37-rc1~7^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2656c36699677238edc9ec1fea79039f1fddbcb6;p=pandora-kernel.git

genirq: Warn if enable_irq is called before irq is set up

The recent changes in the genirq core unearthed a bug in arch/um which
called enable_irq() before the interrupt was set up.

Warn and return instead of crashing the machine with a NULL pointer
dereference.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Weinberger <richard@nod.at>
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