--- zzzz-none-000/linux-4.9.231/drivers/pci/msi.c	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5530-730/linux-4.9.231/drivers/pci/msi.c	2022-08-31 08:19:49.000000000 +0000
@@ -149,6 +149,11 @@
 
 void __weak arch_teardown_msi_irqs(struct pci_dev *dev)
 {
+	struct msi_controller *chip = dev->bus->msi;
+
+	if (chip && chip->teardown_irqs)
+		return chip->teardown_irqs(chip, dev);
+
 	return default_teardown_msi_irqs(dev);
 }