X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=drivers%2Fpci%2Fprobe.c;h=f6ae0d0052ebd2cd2da1f3e964ec579bf8690d04;hb=44e98edcd11a48619b342d8f442d447b094ab2fc;hp=cefd636681b6418ce75376879dc26fe3891bc47d;hpb=375539832c8cde73fd12762cb7fd223c31b30de0;p=cascardo%2Flinux.git

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index cefd636681b6..f6ae0d0052eb 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -997,7 +997,12 @@ void set_pcie_port_type(struct pci_dev *pdev)
 	else if (type == PCI_EXP_TYPE_UPSTREAM ||
 		 type == PCI_EXP_TYPE_DOWNSTREAM) {
 		parent = pci_upstream_bridge(pdev);
-		if (!parent->has_secondary_link)
+
+		/*
+		 * Usually there's an upstream device (Root Port or Switch
+		 * Downstream Port), but we can't assume one exists.
+		 */
+		if (parent && !parent->has_secondary_link)
 			pdev->has_secondary_link = 1;
 	}
 }
@@ -1103,7 +1108,7 @@ int pci_cfg_space_size(struct pci_dev *dev)
 
 #define LEGACY_IO_RESOURCE	(IORESOURCE_IO | IORESOURCE_PCI_FIXED)
 
-static void pci_msi_setup_pci_dev(struct pci_dev *dev)
+void pci_msi_setup_pci_dev(struct pci_dev *dev)
 {
 	/*
 	 * Disable the MSI hardware to avoid screaming interrupts