--- zzzz-none-000/linux-4.4.60/drivers/pci/msi.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/drivers/pci/msi.c	2021-02-04 17:41:59.000000000 +0000
@@ -147,6 +147,11 @@
 
 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(dev);
+
 	return default_teardown_msi_irqs(dev);
 }