1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index e53e0f659204..68a5f712cd19 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -621,6 +621,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
         if (hotadd) {
                 pcibios_resource_survey_bus(root->bus);
                 pci_assign_unassigned_root_bus_resources(root->bus);
+                acpi_ioapic_add(root);
         }
 
         pci_lock_rescan_remove();
@@ -644,6 +645,8 @@ static void acpi_pci_root_remove(struct acpi_device *device)
 
         pci_stop_root_bus(root->bus);
 
+        WARN_ON(acpi_ioapic_remove(root));
+
         device_set_run_wake(root->bus->bridge, false);
         pci_acpi_remove_bus_pm_notifier(device);