1 files changed, 20 insertions, 11 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 068aa1c9538c..d021c98605b3 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -53,7 +53,7 @@ static inline int device_is_not_partition(struct device *dev)
  * it is attached to.  If it is not attached to a bus either, an empty
  * string will be returned.
  */
-const char *dev_driver_string(struct device *dev)
+const char *dev_driver_string(const struct device *dev)
 {
         return dev->driver ? dev->driver->name :
                         (dev->bus ? dev->bus->name :
@@ -541,6 +541,7 @@ void device_initialize(struct device *dev)
         spin_lock_init(&dev->devres_lock);
         INIT_LIST_HEAD(&dev->devres_head);
         device_init_wakeup(dev, 0);
+        device_pm_init(dev);
         set_dev_node(dev, -1);
 }
 
@@ -843,13 +844,19 @@ int device_add(struct device *dev)
 {
         struct device *parent = NULL;
         struct class_interface *class_intf;
-        int error;
+        int error = -EINVAL;
 
         dev = get_device(dev);
-        if (!dev || !strlen(dev->bus_id)) {
-                error = -EINVAL;
-                goto Done;
-        }
+        if (!dev)
+                goto done;
+
+        /* Temporarily support init_name if it is set.
+         * It will override bus_id for now */
+        if (dev->init_name)
+                dev_set_name(dev, "%s", dev->init_name);
+
+        if (!strlen(dev->bus_id))
+                goto done;
 
         pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
 
@@ -897,9 +904,10 @@ int device_add(struct device *dev)
         error = bus_add_device(dev);
         if (error)
                 goto BusError;
-        error = device_pm_add(dev);
+        error = dpm_sysfs_add(dev);
         if (error)
-                goto PMError;
+                goto DPMError;
+        device_pm_add(dev);
         kobject_uevent(&dev->kobj, KOBJ_ADD);
         bus_attach_device(dev);
         if (parent)
@@ -917,10 +925,10 @@ int device_add(struct device *dev)
                                 class_intf->add_dev(dev, class_intf);
                 mutex_unlock(&dev->class->p->class_mutex);
         }
- Done:
+done:
         put_device(dev);
         return error;
- PMError:
+ DPMError:
         bus_remove_device(dev);
  BusError:
         if (dev->bus)
@@ -944,7 +952,7 @@ int device_add(struct device *dev)
         cleanup_device_parent(dev);
         if (parent)
                 put_device(parent);
-        goto Done;
+        goto done;
 }
 
 /**
@@ -1007,6 +1015,7 @@ void device_del(struct device *dev)
         struct class_interface *class_intf;
 
         device_pm_remove(dev);
+        dpm_sysfs_remove(dev);
         if (parent)
                 klist_del(&dev->knode_parent);
         if (MAJOR(dev->devt)) {