From 7ba1930db02fc3118165338ef4e562869f575583 Mon Sep 17 00:00:00 2001
From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Date: Tue, 23 Jun 2009 17:39:27 +0900
Subject: [PATCH] PCI MSI: Unmask MSI if setup failed

The initial state of mask register of MSI is unmasked.  We set it
masked before calling arch_setup_msi_irqs().  If arch_setup_msi_irq()
fails, it is better to restore the state of the mask register.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Reading git-format-patch failed