35 	return mdev->parent->dev;  in mdev_parent_dev()
72 	struct mdev_parent *parent;  in __find_parent_device()  local
74 	list_for_each_entry(parent, &parent_list, next) {  in __find_parent_device()
75 		if (parent->dev == dev)  in __find_parent_device()
76 			return parent;  in __find_parent_device()
83 	struct mdev_parent *parent = container_of(kref, struct mdev_parent,  in mdev_release_parent()  local
85 	struct device *dev = parent->dev;  in mdev_release_parent()
87 	kfree(parent);  in mdev_release_parent()
92 inline struct mdev_parent *mdev_get_parent(struct mdev_parent *parent)  in mdev_get_parent()  argument
94 	if (parent)  in mdev_get_parent()
95 		kref_get(&parent->ref);  in mdev_get_parent()
97 	return parent;  in mdev_get_parent()
100 static inline void mdev_put_parent(struct mdev_parent *parent)  in mdev_put_parent()  argument
102 	if (parent)  in mdev_put_parent()
103 		kref_put(&parent->ref, mdev_release_parent);  in mdev_put_parent()
109 	struct mdev_parent *parent = mdev->parent;  in mdev_device_create_ops()  local
112 	ret = parent->ops->create(kobj, mdev);  in mdev_device_create_ops()
117 				  parent->ops->mdev_attr_groups);  in mdev_device_create_ops()
119 		parent->ops->remove(mdev);  in mdev_device_create_ops()
136 	struct mdev_parent *parent = mdev->parent;  in mdev_device_remove_ops()  local
143 	ret = parent->ops->remove(mdev);  in mdev_device_remove_ops()
147 	sysfs_remove_groups(&mdev->dev.kobj, parent->ops->mdev_attr_groups);  in mdev_device_remove_ops()
170 	struct mdev_parent *parent;  in mdev_register_device()  local
183 	parent = __find_parent_device(dev);  in mdev_register_device()
184 	if (parent) {  in mdev_register_device()
189 	parent = kzalloc(sizeof(*parent), GFP_KERNEL);  in mdev_register_device()
190 	if (!parent) {  in mdev_register_device()
195 	kref_init(&parent->ref);  in mdev_register_device()
197 	parent->dev = dev;  in mdev_register_device()
198 	parent->ops = ops;  in mdev_register_device()
208 	ret = parent_create_sysfs_files(parent);  in mdev_register_device()
216 	list_add(&parent->next, &parent_list);  in mdev_register_device()
224 	if (parent)  in mdev_register_device()
225 		mdev_put_parent(parent);  in mdev_register_device()
242 	struct mdev_parent *parent;  in mdev_unregister_device()  local
246 	parent = __find_parent_device(dev);  in mdev_unregister_device()
248 	if (!parent) {  in mdev_unregister_device()
254 	list_del(&parent->next);  in mdev_unregister_device()
260 	parent_remove_sysfs_files(parent);  in mdev_unregister_device()
263 	mdev_put_parent(parent);  in mdev_unregister_device()
283 	struct mdev_parent *parent;  in mdev_device_create()  local
286 	parent = mdev_get_parent(type->parent);  in mdev_device_create()
287 	if (!parent)  in mdev_device_create()
312 	mdev->parent = parent;  in mdev_device_create()
315 	mdev->dev.parent  = dev;  in mdev_device_create()
345 	mdev_put_parent(parent);  in mdev_device_create()
352 	struct mdev_parent *parent;  in mdev_device_remove()  local
378 	parent = mdev->parent;  in mdev_device_remove()
388 	mdev_put_parent(parent);  in mdev_device_remove()