32 	return mdev->type->parent->dev;  in mdev_parent_dev()
62 	return mtype->parent->dev;  in mtype_get_parent_dev()
69 	struct mdev_parent *parent;  in __find_parent_device()  local
71 	list_for_each_entry(parent, &parent_list, next) {  in __find_parent_device()
72 		if (parent->dev == dev)  in __find_parent_device()
73 			return parent;  in __find_parent_device()
80 	struct mdev_parent *parent = container_of(kref, struct mdev_parent,  in mdev_release_parent()  local
82 	struct device *dev = parent->dev;  in mdev_release_parent()
84 	kfree(parent);  in mdev_release_parent()
91 	struct mdev_parent *parent = mdev->type->parent;  in mdev_device_remove_common()  local
96 	lockdep_assert_held(&parent->unreg_sem);  in mdev_device_remove_common()
97 	if (parent->ops->remove) {  in mdev_device_remove_common()
98 		ret = parent->ops->remove(mdev);  in mdev_device_remove_common()
127 	struct mdev_parent *parent;  in mdev_register_device()  local
144 	parent = __find_parent_device(dev);  in mdev_register_device()
145 	if (parent) {  in mdev_register_device()
146 		parent = NULL;  in mdev_register_device()
151 	parent = kzalloc(sizeof(*parent), GFP_KERNEL);  in mdev_register_device()
152 	if (!parent) {  in mdev_register_device()
157 	kref_init(&parent->ref);  in mdev_register_device()
158 	init_rwsem(&parent->unreg_sem);  in mdev_register_device()
160 	parent->dev = dev;  in mdev_register_device()
161 	parent->ops = ops;  in mdev_register_device()
171 	ret = parent_create_sysfs_files(parent);  in mdev_register_device()
179 	list_add(&parent->next, &parent_list);  in mdev_register_device()
189 	if (parent)  in mdev_register_device()
190 		mdev_put_parent(parent);  in mdev_register_device()
207 	struct mdev_parent *parent;  in mdev_unregister_device()  local
212 	parent = __find_parent_device(dev);  in mdev_unregister_device()
214 	if (!parent) {  in mdev_unregister_device()
220 	list_del(&parent->next);  in mdev_unregister_device()
223 	down_write(&parent->unreg_sem);  in mdev_unregister_device()
229 	parent_remove_sysfs_files(parent);  in mdev_unregister_device()
230 	up_write(&parent->unreg_sem);  in mdev_unregister_device()
232 	mdev_put_parent(parent);  in mdev_unregister_device()
258 	struct mdev_parent *parent = type->parent;  in mdev_device_create()  local
259 	struct mdev_driver *drv = parent->ops->device_driver;  in mdev_device_create()
278 	mdev->dev.parent  = parent->dev;  in mdev_device_create()
281 	mdev->dev.groups = parent->ops->mdev_attr_groups;  in mdev_device_create()
295 	if (!down_read_trylock(&parent->unreg_sem)) {  in mdev_device_create()
300 	if (parent->ops->create) {  in mdev_device_create()
301 		ret = parent->ops->create(mdev);  in mdev_device_create()
322 	up_read(&parent->unreg_sem);  in mdev_device_create()
329 	if (parent->ops->remove)  in mdev_device_create()
330 		parent->ops->remove(mdev);  in mdev_device_create()
332 	up_read(&parent->unreg_sem);  in mdev_device_create()
341 	struct mdev_parent *parent = mdev->type->parent;  in mdev_device_remove()  local
363 	if (!down_read_trylock(&parent->unreg_sem))  in mdev_device_remove()
367 	up_read(&parent->unreg_sem);  in mdev_device_remove()