81 	if (!led_cdev->trigger)  in led_trigger_show()
87 		if (led_cdev->trigger && !strcmp(led_cdev->trigger->name,  in led_trigger_show()
102 void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger)  in led_trigger_set()  argument
107 	if (led_cdev->trigger) {  in led_trigger_set()
108 		write_lock_irqsave(&led_cdev->trigger->leddev_list_lock, flags);  in led_trigger_set()
110 		write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock,  in led_trigger_set()
112 		if (led_cdev->trigger->deactivate)  in led_trigger_set()
113 			led_cdev->trigger->deactivate(led_cdev);  in led_trigger_set()
114 		led_cdev->trigger = NULL;  in led_trigger_set()
117 	if (trigger) {  in led_trigger_set()
118 		write_lock_irqsave(&trigger->leddev_list_lock, flags);  in led_trigger_set()
119 		list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs);  in led_trigger_set()
120 		write_unlock_irqrestore(&trigger->leddev_list_lock, flags);  in led_trigger_set()
121 		led_cdev->trigger = trigger;  in led_trigger_set()
122 		if (trigger->activate)  in led_trigger_set()
123 			trigger->activate(led_cdev);  in led_trigger_set()
156 int led_trigger_register(struct led_trigger *trigger)  in led_trigger_register()  argument
160 	rwlock_init(&trigger->leddev_list_lock);  in led_trigger_register()
161 	INIT_LIST_HEAD(&trigger->led_cdevs);  in led_trigger_register()
165 	list_add_tail(&trigger->next_trig, &trigger_list);  in led_trigger_register()
172 		if (!led_cdev->trigger && led_cdev->default_trigger &&  in led_trigger_register()
173 			    !strcmp(led_cdev->default_trigger, trigger->name))  in led_trigger_register()
174 			led_trigger_set(led_cdev, trigger);  in led_trigger_register()
183 void led_trigger_unregister(struct led_trigger *trigger)  in led_trigger_unregister()  argument
189 	list_del(&trigger->next_trig);  in led_trigger_unregister()
196 		if (led_cdev->trigger == trigger)  in led_trigger_unregister()
206 void led_trigger_event(struct led_trigger *trigger,  in led_trigger_event()  argument
211 	if (!trigger)  in led_trigger_event()
214 	read_lock(&trigger->leddev_list_lock);  in led_trigger_event()
215 	list_for_each(entry, &trigger->led_cdevs) {  in led_trigger_event()
221 	read_unlock(&trigger->leddev_list_lock);  in led_trigger_event()
227 	struct led_trigger *trigger;  in led_trigger_register_simple()  local
230 	trigger = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);  in led_trigger_register_simple()
232 	if (trigger) {  in led_trigger_register_simple()
233 		trigger->name = name;  in led_trigger_register_simple()
234 		err = led_trigger_register(trigger);  in led_trigger_register_simple()
242 	*tp = trigger;  in led_trigger_register_simple()
246 void led_trigger_unregister_simple(struct led_trigger *trigger)  in led_trigger_unregister_simple()  argument
248 	if (trigger)  in led_trigger_unregister_simple()
249 		led_trigger_unregister(trigger);  in led_trigger_unregister_simple()
250 	kfree(trigger);  in led_trigger_unregister_simple()