diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 709791b70ca0548cbb74fc52dcba99f163ed8728..e37fea6e178d2dab00d3334848d231117d525013 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state)
 {
 	pci_power_t ret;
 
-	if (!pci_find_capability(dev, PCI_CAP_ID_PM))
+	if (!dev->pm_cap)
 		return PCI_D0;
 
 	ret = platform_pci_choose_state(dev);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7f492574dcf450e947bdc10fd42be878f5ac63b0..dee5ed4f7b6e182d0c0294d2928786c36b257b50 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev)
 	u16 command, pmcsr;
 	u8 __iomem *csr;
 	u8 cmd_hi;
-	int pm;
 
 	switch (dev->device) {
 	/* PCI IDs taken from drivers/net/e100.c */
@@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev)
 	 * Check that the device is in the D0 power state. If it's not,
 	 * there is no point to look any further.
 	 */
-	pm = pci_find_capability(dev, PCI_CAP_ID_PM);
-	if (pm) {
-		pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
+	if (dev->pm_cap) {
+		pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
 		if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
 			return;
 	}