PCI: pciehp: remove pci_dev field

Since we have a pointer to pcie_device in struct controller, we don't
need a pointer to pci_dev.

Acked-by: Alex Chiang <achiang@hp.com>
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_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index b3c9ae5..c3e5ca5 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -208,7 +208,7 @@
 {
 	int retval = 0;
 	struct controller *ctrl = p_slot->ctrl;
-	struct pci_bus *parent = ctrl->pci_dev->subordinate;
+	struct pci_bus *parent = ctrl->pcie->port->subordinate;
 
 	if (POWER_CTRL(ctrl)) {
 		/* Power on slot */
@@ -312,8 +312,8 @@
 		mutex_unlock(&p_slot->lock);
 		ctrl_dbg(p_slot->ctrl,
 			 "Disabling domain:bus:device=%04x:%02x:00\n",
-			 pci_domain_nr(p_slot->ctrl->pci_dev->subordinate),
-			 p_slot->ctrl->pci_dev->subordinate->number);
+			 pci_domain_nr(p_slot->ctrl->pcie->port->subordinate),
+			 p_slot->ctrl->pcie->port->subordinate->number);
 		pciehp_disable_slot(p_slot);
 		mutex_lock(&p_slot->lock);
 		p_slot->state = STATIC_STATE;