1 files changed, 13 insertions, 32 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 61df508fa62b..8079afca4972 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -109,7 +109,6 @@ static struct sysfs_ops dev_sysfs_ops = {
 static void device_release(struct kobject *kobj)
 {
         struct device *dev = to_dev(kobj);
-        struct device_private *p = dev->p;
 
         if (dev->release)
                 dev->release(dev);
@@ -121,7 +120,6 @@ static void device_release(struct kobject *kobj)
                 WARN(1, KERN_ERR "Device '%s' does not have a release() "
                         "function, it is broken and must be fixed.\n",
                         dev_name(dev));
-        kfree(p);
 }
 
 static struct kobj_type device_ktype = {
@@ -509,16 +507,14 @@ EXPORT_SYMBOL_GPL(device_schedule_callback_owner);
 
 static void klist_children_get(struct klist_node *n)
 {
-        struct device_private *p = to_device_private_parent(n);
-        struct device *dev = p->device;
+        struct device *dev = container_of(n, struct device, knode_parent);
 
         get_device(dev);
 }
 
 static void klist_children_put(struct klist_node *n)
 {
-        struct device_private *p = to_device_private_parent(n);
-        struct device *dev = p->device;
+        struct device *dev = container_of(n, struct device, knode_parent);
 
         put_device(dev);
 }
@@ -540,15 +536,9 @@ static void klist_children_put(struct klist_node *n)
  */
 void device_initialize(struct device *dev)
 {
-        dev->p = kzalloc(sizeof(*dev->p), GFP_KERNEL);
-        if (!dev->p) {
-                WARN_ON(1);
-                return;
-        }
-        dev->p->device = dev;
         dev->kobj.kset = devices_kset;
         kobject_init(&dev->kobj, &device_ktype);
-        klist_init(&dev->p->klist_children, klist_children_get,
+        klist_init(&dev->klist_children, klist_children_get,
                    klist_children_put);
         INIT_LIST_HEAD(&dev->dma_pools);
         init_MUTEX(&dev->sem);
@@ -932,8 +922,7 @@ int device_add(struct device *dev)
         kobject_uevent(&dev->kobj, KOBJ_ADD);
         bus_attach_device(dev);
         if (parent)
-                klist_add_tail(&dev->p->knode_parent,
-                               &parent->p->klist_children);
+                klist_add_tail(&dev->knode_parent, &parent->klist_children);
 
         if (dev->class) {
                 mutex_lock(&dev->class->p->class_mutex);
@@ -1047,7 +1036,7 @@ void device_del(struct device *dev)
         device_pm_remove(dev);
         dpm_sysfs_remove(dev);
         if (parent)
-                klist_del(&dev->p->knode_parent);
+                klist_del(&dev->knode_parent);
         if (MAJOR(dev->devt)) {
                 device_remove_sys_dev_entry(dev);
                 device_remove_file(dev, &devt_attr);
@@ -1108,14 +1097,7 @@ void device_unregister(struct device *dev)
 static struct device *next_device(struct klist_iter *i)
 {
         struct klist_node *n = klist_next(i);
-        struct device *dev = NULL;
-        struct device_private *p;
-
-        if (n) {
-                p = to_device_private_parent(n);
-                dev = p->device;
-        }
-        return dev;
+        return n ? container_of(n, struct device, knode_parent) : NULL;
 }
 
 /**
@@ -1137,7 +1119,7 @@ int device_for_each_child(struct device *parent, void *data,
         struct device *child;
         int error = 0;
 
-        klist_iter_init(&parent->p->klist_children, &i);
+        klist_iter_init(&parent->klist_children, &i);
         while ((child = next_device(&i)) && !error)
                 error = fn(child, data);
         klist_iter_exit(&i);
@@ -1168,7 +1150,7 @@ struct device *device_find_child(struct device *parent, void *data,
         if (!parent)
                 return NULL;
 
-        klist_iter_init(&parent->p->klist_children, &i);
+        klist_iter_init(&parent->klist_children, &i);
         while ((child = next_device(&i)))
                 if (match(child, data) && get_device(child))
                         break;
@@ -1582,10 +1564,9 @@ int device_move(struct device *dev, struct device *new_parent)
         old_parent = dev->parent;
         dev->parent = new_parent;
         if (old_parent)
-                klist_remove(&dev->p->knode_parent);
+                klist_remove(&dev->knode_parent);
         if (new_parent) {
-                klist_add_tail(&dev->p->knode_parent,
-                               &new_parent->p->klist_children);
+                klist_add_tail(&dev->knode_parent, &new_parent->klist_children);
                 set_dev_node(dev, dev_to_node(new_parent));
         }
 
@@ -1597,11 +1578,11 @@ int device_move(struct device *dev, struct device *new_parent)
                 device_move_class_links(dev, new_parent, old_parent);
                 if (!kobject_move(&dev->kobj, &old_parent->kobj)) {
                         if (new_parent)
-                                klist_remove(&dev->p->knode_parent);
+                                klist_remove(&dev->knode_parent);
                         dev->parent = old_parent;
                         if (old_parent) {
-                                klist_add_tail(&dev->p->knode_parent,
-                                               &old_parent->p->klist_children);
+                                klist_add_tail(&dev->knode_parent,
+                                               &old_parent->klist_children);
                                 set_dev_node(dev, dev_to_node(old_parent));
                         }
                 }