1 files changed, 9 insertions, 46 deletions

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index ef6f155469b5..40a84cc6740c 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -36,12 +36,11 @@ int register_acpi_bus_type(struct acpi_bus_type *type)
 {
         if (acpi_disabled)
                 return -ENODEV;
-        if (type && type->bus && type->find_device) {
+        if (type && type->match && type->find_device) {
                 down_write(&bus_type_sem);
                 list_add_tail(&type->list, &bus_type_list);
                 up_write(&bus_type_sem);
-                printk(KERN_INFO PREFIX "bus type %s registered\n",
-                       type->bus->name);
+                printk(KERN_INFO PREFIX "bus type %s registered\n", type->name);
                 return 0;
         }
         return -ENODEV;
@@ -56,24 +55,21 @@ int unregister_acpi_bus_type(struct acpi_bus_type *type)
                 down_write(&bus_type_sem);
                 list_del_init(&type->list);
                 up_write(&bus_type_sem);
-                printk(KERN_INFO PREFIX "ACPI bus type %s unregistered\n",
-                       type->bus->name);
+                printk(KERN_INFO PREFIX "bus type %s unregistered\n",
+                       type->name);
                 return 0;
         }
         return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(unregister_acpi_bus_type);
 
-static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
+static struct acpi_bus_type *acpi_get_bus_type(struct device *dev)
 {
         struct acpi_bus_type *tmp, *ret = NULL;
 
-        if (!type)
-                return NULL;
-
         down_read(&bus_type_sem);
         list_for_each_entry(tmp, &bus_type_list, list) {
-                if (tmp->bus == type) {
+                if (tmp->match(dev)) {
                         ret = tmp;
                         break;
                 }
@@ -82,22 +78,6 @@ static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
         return ret;
 }
 
-static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
-{
-        struct acpi_bus_type *tmp;
-        int ret = -ENODEV;
-
-        down_read(&bus_type_sem);
-        list_for_each_entry(tmp, &bus_type_list, list) {
-                if (tmp->find_bridge && !tmp->find_bridge(dev, handle)) {
-                        ret = 0;
-                        break;
-                }
-        }
-        up_read(&bus_type_sem);
-        return ret;
-}
-
 static acpi_status do_acpi_find_child(acpi_handle handle, u32 lvl_not_used,
                                       void *addr_p, void **ret_p)
 {
@@ -261,29 +241,12 @@ err:
 
 static int acpi_platform_notify(struct device *dev)
 {
-        struct acpi_bus_type *type;
+        struct acpi_bus_type *type = acpi_get_bus_type(dev);
         acpi_handle handle;
         int ret;
 
         ret = acpi_bind_one(dev, NULL);
-        if (ret && (!dev->bus || !dev->parent)) {
-                /* bridge devices genernally haven't bus or parent */
-                ret = acpi_find_bridge_device(dev, &handle);
-                if (!ret) {
-                        ret = acpi_bind_one(dev, handle);
-                        if (ret)
-                                goto out;
-                }
-        }
-
-        type = acpi_get_bus_type(dev->bus);
-        if (ret) {
-                if (!type || !type->find_device) {
-                        DBG("No ACPI bus support for %s\n", dev_name(dev));
-                        ret = -EINVAL;
-                        goto out;
-                }
-
+        if (ret && type) {
                 ret = type->find_device(dev, &handle);
                 if (ret) {
                         DBG("Unable to get handle for %s\n", dev_name(dev));
@@ -316,7 +279,7 @@ static int acpi_platform_notify_remove(struct device *dev)
 {
         struct acpi_bus_type *type;
 
-        type = acpi_get_bus_type(dev->bus);
+        type = acpi_get_bus_type(dev);
         if (type && type->cleanup)
                 type->cleanup(dev);