Revert "driver core: create a private portion of struct device"

This reverts commit 2831fe6f9cc4e16c103504ee09a47a084297c0f3.

Turns out that device_initialize shouldn't fail silently.
This series needs to be reworked in order to get into proper
shape.

Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 0 insertions, 23 deletions

diff --git a/drivers/base/base.h b/drivers/base/base.h
index 6b20809b5fd4..0a5f055dffba 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -63,18 +63,6 @@ struct class_private {
 #define to_class(obj)   \
         container_of(obj, struct class_private, class_subsys.kobj)
 
-/**
- * struct device_private - structure to hold the private to the driver core portions of the device structure.
- *
- * @device - pointer back to the struct class that this structure is
- * associated with.
- *
- * Nothing outside of the driver core should ever touch these fields.
- */
-struct device_private {
-        struct device *device;
-};
-
 /* initialisation functions */
 extern int devices_init(void);
 extern int buses_init(void);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 5c2acf7116d7..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 = {
@@ -538,12 +536,6 @@ 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->klist_children, klist_children_get,
diff --git a/include/linux/device.h b/include/linux/device.h
index 2975351635d3..45e5b1921fbb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -28,7 +28,6 @@
 #define BUS_ID_SIZE             20
 
 struct device;
-struct device_private;
 struct device_driver;
 struct driver_private;
 struct class;
@@ -372,8 +371,6 @@ struct device {
         struct klist_node       knode_bus;
         struct device           *parent;
 
-        struct device_private   *p;
-
         struct kobject kobj;
         char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
         unsigned                uevent_suppress:1;