44 	struct hiddev *hiddev;  member
143 	struct hiddev *hiddev = hid->hiddev;  in hiddev_send_event()  local
147 	spin_lock_irqsave(&hiddev->list_lock, flags);  in hiddev_send_event()
148 	list_for_each_entry(list, &hiddev->list, node) {  in hiddev_send_event()
157 	spin_unlock_irqrestore(&hiddev->list_lock, flags);  in hiddev_send_event()
159 	wake_up_interruptible(&hiddev->wait);  in hiddev_send_event()
221 	spin_lock_irqsave(&list->hiddev->list_lock, flags);  in hiddev_release()
223 	spin_unlock_irqrestore(&list->hiddev->list_lock, flags);  in hiddev_release()
225 	mutex_lock(&list->hiddev->existancelock);  in hiddev_release()
226 	if (!--list->hiddev->open) {  in hiddev_release()
227 		if (list->hiddev->exist) {  in hiddev_release()
228 			hid_hw_close(list->hiddev->hid);  in hiddev_release()
229 			hid_hw_power(list->hiddev->hid, PM_HINT_NORMAL);  in hiddev_release()
231 			mutex_unlock(&list->hiddev->existancelock);  in hiddev_release()
232 			kfree(list->hiddev);  in hiddev_release()
238 	mutex_unlock(&list->hiddev->existancelock);  in hiddev_release()
244 static int __hiddev_open(struct hiddev *hiddev, struct file *file)  in __hiddev_open()  argument
249 	lockdep_assert_held(&hiddev->existancelock);  in __hiddev_open()
256 	list->hiddev = hiddev;  in __hiddev_open()
258 	if (!hiddev->open++) {  in __hiddev_open()
259 		error = hid_hw_power(hiddev->hid, PM_HINT_FULLON);  in __hiddev_open()
263 		error = hid_hw_open(hiddev->hid);  in __hiddev_open()
268 	spin_lock_irq(&hiddev->list_lock);  in __hiddev_open()
269 	list_add_tail(&list->node, &hiddev->list);  in __hiddev_open()
270 	spin_unlock_irq(&hiddev->list_lock);  in __hiddev_open()
277 	hid_hw_power(hiddev->hid, PM_HINT_NORMAL);  in __hiddev_open()
279 	hiddev->open--;  in __hiddev_open()
291 	struct hiddev *hiddev;  in hiddev_open()  local
299 	hiddev = hid->hiddev;  in hiddev_open()
301 	mutex_lock(&hiddev->existancelock);  in hiddev_open()
302 	res = hiddev->exist ? __hiddev_open(hiddev, file) : -ENODEV;  in hiddev_open()
303 	mutex_unlock(&hiddev->existancelock);  in hiddev_open()
339 			prepare_to_wait(&list->hiddev->wait, &wait, TASK_INTERRUPTIBLE);  in hiddev_read()
346 				if (!list->hiddev->exist) {  in hiddev_read()
359 					finish_wait(&list->hiddev->wait, &wait);  in hiddev_read()
364 			finish_wait(&list->hiddev->wait, &wait);  in hiddev_read()
416 	poll_wait(file, &list->hiddev->wait, wait);  in hiddev_poll()
419 	if (!list->hiddev->exist)  in hiddev_poll()
427 static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, void __user *user_a…  in hiddev_ioctl_usage()  argument
429 	struct hid_device *hid = hiddev->hid;  in hiddev_ioctl_usage()
566 static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd, void __user *user_…  in hiddev_ioctl_string()  argument
568 	struct hid_device *hid = hiddev->hid;  in hiddev_ioctl_string()
597 	struct hiddev *hiddev = list->hiddev;  in hiddev_ioctl()  local
610 	mutex_lock(&hiddev->existancelock);  in hiddev_ioctl()
611 	if (!hiddev->exist) {  in hiddev_ioctl()
616 	hid = hiddev->hid;  in hiddev_ioctl()
685 		r = hiddev_ioctl_string(hiddev, cmd, user_arg);  in hiddev_ioctl()
690 		hiddev->initialized = true;  in hiddev_ioctl()
793 		if (!hiddev->initialized) {  in hiddev_ioctl()
795 			hiddev->initialized = true;  in hiddev_ioctl()
797 		r = hiddev_ioctl_usage(hiddev, cmd, user_arg);  in hiddev_ioctl()
843 	mutex_unlock(&hiddev->existancelock);  in hiddev_ioctl()
877 	struct hiddev *hiddev;  in hiddev_connect()  local
893 	if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL)))  in hiddev_connect()
896 	init_waitqueue_head(&hiddev->wait);  in hiddev_connect()
897 	INIT_LIST_HEAD(&hiddev->list);  in hiddev_connect()
898 	spin_lock_init(&hiddev->list_lock);  in hiddev_connect()
899 	mutex_init(&hiddev->existancelock);  in hiddev_connect()
900 	hid->hiddev = hiddev;  in hiddev_connect()
901 	hiddev->hid = hid;  in hiddev_connect()
902 	hiddev->exist = 1;  in hiddev_connect()
906 		hid->hiddev = NULL;  in hiddev_connect()
907 		kfree(hiddev);  in hiddev_connect()
915 	hiddev->initialized = hid->quirks & HID_QUIRK_NO_INIT_REPORTS;  in hiddev_connect()
917 	hiddev->minor = usbhid->intf->minor;  in hiddev_connect()
929 	struct hiddev *hiddev = hid->hiddev;  in hiddev_disconnect()  local
934 	mutex_lock(&hiddev->existancelock);  in hiddev_disconnect()
935 	hiddev->exist = 0;  in hiddev_disconnect()
937 	if (hiddev->open) {  in hiddev_disconnect()
938 		hid_hw_close(hiddev->hid);  in hiddev_disconnect()
939 		wake_up_interruptible(&hiddev->wait);  in hiddev_disconnect()
940 		mutex_unlock(&hiddev->existancelock);  in hiddev_disconnect()
942 		mutex_unlock(&hiddev->existancelock);  in hiddev_disconnect()
943 		kfree(hiddev);  in hiddev_disconnect()