From eba6ac60ba66c6bf6858938442204feaa67dea31 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Tue, 1 Sep 2009 12:07:08 +0200
Subject: [PATCH] x86/amd-iommu: Align locking between attach_device and
 detach_device

This patch makes the locking behavior between the functions
attach_device and __attach_device consistent with the
locking behavior between detach_device and __detach_device.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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