openwrt/target/linux/cns3xxx/patches-4.4/032-pcie_no_of_domain_fix.p...

15 lines
429 B
Diff

--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4772,7 +4772,10 @@ int pci_get_new_domain_nr(void)
void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
{
static int use_dt_domains = -1;
- int domain = of_get_pci_domain_nr(parent->of_node);
+ int domain = -1;
+
+ if (parent && parent->of_node)
+ domain = of_get_pci_domain_nr(parent->of_node);
/*
* Check DT domain and use_dt_domains values.