[PATCH] PCI: Fix regression in pci_enable_device_bars

This patch (as552) fixes yet another small problem recently added.  If an
attempt to put a PCI device back into D0 fails because the device doesn't
support PCI PM, it shouldn't count as error.  Without this patch the UHCI
controllers on my Intel motherboard don't work.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/pci/pci.c

@@ -445,7 +445,7 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
 	int err;
 
 	err = pci_set_power_state(dev, PCI_D0);
-	if (err)
+	if (err < 0 && err != -EIO)
 		return err;
 	err = pcibios_enable_device(dev, bars);
 	if (err < 0)