diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 21f2ac6..28af496b 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1832,7 +1832,7 @@
 	if (!(cap & PCI_EXP_DEVCAP_FLR))
 		return -ENOTTY;
 
-	if (!dev->msi_enabled && !dev->msix_enabled)
+	if (!dev->msi_enabled && !dev->msix_enabled && dev->irq != 0)
 		disable_irq(dev->irq);
 	pci_save_state(dev);
 
@@ -1841,7 +1841,7 @@
 	r = pci_execute_reset_function(dev);
 
 	pci_restore_state(dev);
-	if (!dev->msi_enabled && !dev->msix_enabled)
+	if (!dev->msi_enabled && !dev->msix_enabled && dev->irq != 0)
 		enable_irq(dev->irq);
 
 	return r;