2 files changed, 38 insertions, 2 deletions

diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 5d19b39e9e2b..7753df1f9fb8 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -129,6 +129,8 @@ acpi_pci_bind (
         char                    *pathname = NULL;
         struct acpi_buffer      buffer = {0, NULL};
         acpi_handle             handle = NULL;
+        struct pci_dev          *dev;
+        struct pci_bus          *bus;
 
         ACPI_FUNCTION_TRACE("acpi_pci_bind");
 
@@ -193,8 +195,20 @@ acpi_pci_bind (
          * Locate matching device in PCI namespace.  If it doesn't exist
          * this typically means that the device isn't currently inserted
          * (e.g. docking station, port replicator, etc.).
+         * We cannot simply search the global pci device list, since
+         * PCI devices are added to the global pci list when the root
+         * bridge start ops are run, which may not have happened yet.
          */
-        data->dev = pci_find_slot(data->id.bus, PCI_DEVFN(data->id.device, data->id.function));
+        bus = pci_find_bus(data->id.segment, data->id.bus);
+        if (bus) {
+                list_for_each_entry(dev, &bus->devices, bus_list) {
+                        if (dev->devfn == PCI_DEVFN(data->id.device,
+                                                data->id.function)) {
+                                data->dev = dev;
+                                break;
+                        }
+                }
+        }
         if (!data->dev) {
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
                         "Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7e6b8e3b2ed4..5d2f77fcd50c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -46,6 +46,7 @@ ACPI_MODULE_NAME		("pci_root")
 
 static int acpi_pci_root_add (struct acpi_device *device);
 static int acpi_pci_root_remove (struct acpi_device *device, int type);
+static int acpi_pci_root_start (struct acpi_device *device);
 
 static struct acpi_driver acpi_pci_root_driver = {
         .name =         ACPI_PCI_ROOT_DRIVER_NAME,
@@ -54,6 +55,7 @@ static struct acpi_driver acpi_pci_root_driver = {
         .ops =          {
                                 .add =    acpi_pci_root_add,
                                 .remove = acpi_pci_root_remove,
+                                .start =  acpi_pci_root_start,
                         },
 };
 
@@ -169,6 +171,7 @@ acpi_pci_root_add (
         if (!root)
                 return_VALUE(-ENOMEM);
         memset(root, 0, sizeof(struct acpi_pci_root));
+        INIT_LIST_HEAD(&root->node);
 
         root->handle = device->handle;
         strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
@@ -298,12 +301,31 @@ acpi_pci_root_add (
                         root->id.bus);
 
 end:
-        if (result)
+        if (result) {
+                if (!list_empty(&root->node))
+                        list_del(&root->node);
                 kfree(root);
+        }
 
         return_VALUE(result);
 }
 
+static int
+acpi_pci_root_start (
+        struct acpi_device      *device)
+{
+        struct acpi_pci_root    *root;
+
+        ACPI_FUNCTION_TRACE("acpi_pci_root_start");
+
+        list_for_each_entry(root, &acpi_pci_roots, node) {
+                if (root->handle == device->handle) {
+                        pci_bus_add_devices(root->bus);
+                        return_VALUE(0);
+                }
+        }
+        return_VALUE(-ENODEV);
+}
 
 static int
 acpi_pci_root_remove (