Commit 9df1c6ec authored by Shawn Lin's avatar Shawn Lin Committed by Bjorn Helgaas
Browse files

PCI: Fix NULL pointer dereference in of_pci_bus_find_domain_nr() 



If the "parent" pointer passed to of_pci_bus_find_domain_nr() is NULL,
don't dereference it.

Signed-off-by: default avatarShawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 7babfa5b

drivers/pci/pci.c

+3 −2
Original line number Diff line number Diff line
@@ -5611,8 +5611,9 @@ static int of_pci_bus_find_domain_nr(struct device *parent) 
		use_dt_domains = 0;

		domain = pci_get_new_domain_nr();

	} else {

		dev_err(parent, "Node %pOF has inconsistent \"linux,pci-domain\" property in DT\n",

			parent->of_node);

		if (parent)

			pr_err("Node %pOF has ", parent->of_node);

		pr_err("Inconsistent \"linux,pci-domain\" property in DT\n");

		domain = -1;

	}