PCI: pciehp: fix irq initialization

Current pciehp driver gets irq number from pci_dev->irq. But because
pciehp driver is a pci express port service driver, it should get irq
number from pcie_device->irq.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 9d934dd..5a5c08f 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -223,7 +223,7 @@
 
 static inline int pciehp_request_irq(struct controller *ctrl)
 {
-	int retval, irq = ctrl->pci_dev->irq;
+	int retval, irq = ctrl->pcie->irq;
 
 	/* Install interrupt polling timer. Start with 10 sec delay */
 	if (pciehp_poll_mode) {
@@ -244,7 +244,7 @@
 	if (pciehp_poll_mode)
 		del_timer_sync(&ctrl->poll_timer);
 	else
-		free_irq(ctrl->pci_dev->irq, ctrl);
+		free_irq(ctrl->pcie->irq, ctrl);
 }
 
 static int pcie_poll_cmd(struct controller *ctrl)
@@ -1114,6 +1114,7 @@
 	}
 	INIT_LIST_HEAD(&ctrl->slot_list);
 
+	ctrl->pcie = dev;
 	ctrl->pci_dev = pdev;
 	ctrl->cap_base = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 	if (!ctrl->cap_base) {