Merge branch 'pci/controller/hyperv'

- Return zero, not garbage, when reading PCI_INTERRUPT_PIN from a Hyper-V
  device (Wei Liu)

* pci/controller/hyperv:
  PCI: hv: Return zero, not garbage, when reading PCI_INTERRUPT_PIN

Author: bjorn-helgaas

drivers/pci/controller/pci-hyperv.c

@@ -1130,8 +1130,8 @@ static void _hv_pcifront_read_config(struct hv_pci_dev *hpdev, int where,
 		   PCI_CAPABILITY_LIST) {
 		/* ROM BARs are unimplemented */
 		*val = 0;
-	} else if (where >= PCI_INTERRUPT_LINE && where + size <=
-		   PCI_INTERRUPT_PIN) {
+	} else if ((where >= PCI_INTERRUPT_LINE && where + size <= PCI_INTERRUPT_PIN) ||
+		   (where >= PCI_INTERRUPT_PIN && where + size <= PCI_MIN_GNT)) {
 		/*
 		 * Interrupt Line and Interrupt PIN are hard-wired to zero
 		 * because this front-end only supports message-signaled