diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 0199d240bbbc..3849fed80e2c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4544,7 +4544,8 @@ static void pci_slot_unlock(struct pci_slot *slot)
 			continue;
 		if (dev->subordinate)
 			pci_bus_unlock(dev->subordinate);
-		pci_dev_unlock(dev);
+		else
+			pci_dev_unlock(dev);
 	}
 }