From 6507e6ebebd2d5f7e17c6f2e32524270edd2a922 Mon Sep 17 00:00:00 2001
From: Taku Izumi <izumi.taku@jp.fujitsu.com>
Date: Tue, 18 Sep 2012 15:24:40 +0900
Subject: [PATCH] PCI/ACPI: Protect acpi_pci_roots list with mutex

Use mutex to protect acpi_pci_roots list against PCI host bridge
hotplug operations.

[bhelgaas: s/struct acpi_handle *handle/acpi_handle handle/]
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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