153 	struct wf_control *ct = container_of(kref, struct wf_control, ref);  in wf_control_release()  local
155 	DBG("wf: Deleting control %s\n", ct->name);  in wf_control_release()
157 	if (ct->ops && ct->ops->release)  in wf_control_release()
158 		ct->ops->release(ct);  in wf_control_release()
160 		kfree(ct);  in wf_control_release()
199 	struct wf_control *ct;  in wf_register_control()  local
202 	list_for_each_entry(ct, &wf_controls, link) {  in wf_register_control()
203 		if (!strcmp(ct->name, new_ct->name)) {  in wf_register_control()
205 			       " duplicate control %s\n", ct->name);  in wf_register_control()
232 void wf_unregister_control(struct wf_control *ct)  in wf_unregister_control()  argument
235 	list_del(&ct->link);  in wf_unregister_control()
238 	DBG("wf: Unregistered control %s\n", ct->name);  in wf_unregister_control()
240 	kref_put(&ct->ref, wf_control_release);  in wf_unregister_control()
246 	struct wf_control *ct;  in wf_find_control()  local
249 	list_for_each_entry(ct, &wf_controls, link) {  in wf_find_control()
250 		if (!strcmp(ct->name, name)) {  in wf_find_control()
251 			if (wf_get_control(ct))  in wf_find_control()
252 				ct = NULL;  in wf_find_control()
254 			return ct;  in wf_find_control()
262 int wf_get_control(struct wf_control *ct)  in wf_get_control()  argument
264 	if (!try_module_get(ct->ops->owner))  in wf_get_control()
266 	kref_get(&ct->ref);  in wf_get_control()
271 void wf_put_control(struct wf_control *ct)  in wf_put_control()  argument
273 	struct module *mod = ct->ops->owner;  in wf_put_control()
274 	kref_put(&ct->ref, wf_control_release);  in wf_put_control()
400 	struct wf_control *ct;  in wf_register_client()  local
408 	list_for_each_entry(ct, &wf_controls, link)  in wf_register_client()
409 		wf_notify(WF_EVENT_NEW_CONTROL, ct);  in wf_register_client()