29 	struct mdev_parent *parent = mdev->type->parent;  in mdev_device_remove_common()  local
33 	lockdep_assert_held(&parent->unreg_sem);  in mdev_device_remove_common()
59 int mdev_register_parent(struct mdev_parent *parent, struct device *dev,  in mdev_register_parent()  argument
67 	memset(parent, 0, sizeof(*parent));  in mdev_register_parent()
68 	init_rwsem(&parent->unreg_sem);  in mdev_register_parent()
69 	parent->dev = dev;  in mdev_register_parent()
70 	parent->mdev_driver = mdev_driver;  in mdev_register_parent()
71 	parent->types = types;  in mdev_register_parent()
72 	parent->nr_types = nr_types;  in mdev_register_parent()
73 	atomic_set(&parent->available_instances, mdev_driver->max_instances);  in mdev_register_parent()
75 	ret = parent_create_sysfs_files(parent);  in mdev_register_parent()
93 void mdev_unregister_parent(struct mdev_parent *parent)  in mdev_unregister_parent()  argument
98 	dev_info(parent->dev, "MDEV: Unregistering\n");  in mdev_unregister_parent()
100 	down_write(&parent->unreg_sem);  in mdev_unregister_parent()
101 	class_compat_remove_link(mdev_bus_compat_class, parent->dev, NULL);  in mdev_unregister_parent()
102 	device_for_each_child(parent->dev, NULL, mdev_device_remove_cb);  in mdev_unregister_parent()
103 	parent_remove_sysfs_files(parent);  in mdev_unregister_parent()
104 	up_write(&parent->unreg_sem);  in mdev_unregister_parent()
106 	kobject_uevent_env(&parent->dev->kobj, KOBJ_CHANGE, envp);  in mdev_unregister_parent()
113 	struct mdev_parent *parent = mdev->type->parent;  in mdev_device_release()  local
117 	if (!parent->mdev_driver->get_available)  in mdev_device_release()
118 		atomic_inc(&parent->available_instances);  in mdev_device_release()
132 	struct mdev_parent *parent = type->parent;  in mdev_device_create()  local
133 	struct mdev_driver *drv = parent->mdev_driver;  in mdev_device_create()
150 		if (!atomic_read(&parent->available_instances)) {  in mdev_device_create()
154 		atomic_dec(&parent->available_instances);  in mdev_device_create()
164 	mdev->dev.parent  = parent->dev;  in mdev_device_create()
181 	if (!down_read_trylock(&parent->unreg_sem)) {  in mdev_device_create()
200 	up_read(&parent->unreg_sem);  in mdev_device_create()
207 	up_read(&parent->unreg_sem);  in mdev_device_create()
216 	struct mdev_parent *parent = mdev->type->parent;  in mdev_device_remove()  local
238 	if (!down_read_trylock(&parent->unreg_sem))  in mdev_device_remove()
242 	up_read(&parent->unreg_sem);  in mdev_device_remove()