From: Wang Dongsheng <dongsheng.wang@xxxxxxxxxxxxx>
the root port bus->self always NULL, so put root port pci device
into root port bus->self.
Signed-off-by: Wang Dongsheng <dongsheng.wang@xxxxxxxxxxxxx>
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 38e403d..7f2d1ab 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1472,6 +1472,9 @@ int pci_scan_slot(struct pci_bus *bus, int devfn)
if (!dev->is_added)
nr++;
+ if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
+ bus->self = dev;
+
for (fn = next_fn(bus, dev, 0); fn > 0; fn = next_fn(bus, dev, fn)) {
dev = pci_scan_single_device(bus, devfn + fn);
if (dev) {
--
1.8.5
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