From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Mon, 30 Jul 2007 02:56:30 +0000 (+0900)
Subject: [IA64] Fix possible race in destroy_and_reserve_irq()
X-Git-Tag: v2.6.23-rc2~22^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=216fcd29af47ab53ffd87e82139fcc4095e34d91;p=pandora-kernel.git

[IA64] Fix possible race in destroy_and_reserve_irq()

Currently, destroy_and_reserve_irq() sets irq_status[irq] UNUSED using
clear_irq_vector() and sets irq_status[irq] RSVD using reserve_irq().
But there is a race window because vector_lock is once released between
them. This patch fixes this race window.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

Reading git-diff-tree failed