PCI: Clean up usages of pci_bus->is_added

Now pci_bus->is_added is only used to guard invoking of
pcibios_fixup_bus() in pci_scan_child_bus(), so just set
it directly after the fixups and remove the other test
and set in pci_bus_add_devices().

[bhelgaas: changelog]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Yinghai Lu <yinghai@kernel.org>

1 files changed, 2 insertions, 9 deletions

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 8647dc6f52d0..bdc1e8bf7e60 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -206,16 +206,9 @@ void pci_bus_add_devices(const struct pci_bus *bus)
 
         list_for_each_entry(dev, &bus->devices, bus_list) {
                 BUG_ON(!dev->is_added);
-
                 child = dev->subordinate;
-
-                if (!child)
-                        continue;
-                pci_bus_add_devices(child);
-
-                if (child->is_added)
-                        continue;
-                child->is_added = 1;
+                if (child)
+                        pci_bus_add_devices(child);
         }
 }