1 files changed, 3 insertions, 1 deletions

diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 3ca9bed7dc50..d173a88d744a 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -351,6 +351,8 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
 #endif
 
         INIT_LIST_HEAD(&info.resources);
+        /* insert busn resource at first */
+        pci_add_resource(&info.resources, &root->secondary);
         acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
                         &windows);
         if (windows) {
@@ -384,7 +386,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
                 return NULL;
         }
 
-        pbus->busn_res.end = pci_scan_child_bus(pbus);
+        pci_scan_child_bus(pbus);
         return pbus;
 
 out3: