64 	int err = 0;  in watchdog_ping()  local
69 		err = -ENODEV;  in watchdog_ping()
77 		err = wddev->ops->ping(wddev);  /* ping the watchdog */  in watchdog_ping()
79 		err = wddev->ops->start(wddev); /* restart watchdog */  in watchdog_ping()
83 	return err;  in watchdog_ping()
97 	int err = 0;  in watchdog_start()  local
102 		err = -ENODEV;  in watchdog_start()
109 	err = wddev->ops->start(wddev);  in watchdog_start()
110 	if (err == 0)  in watchdog_start()
115 	return err;  in watchdog_start()
130 	int err = 0;  in watchdog_stop()  local
135 		err = -ENODEV;  in watchdog_stop()
144 		err = -EBUSY;  in watchdog_stop()
148 	err = wddev->ops->stop(wddev);  in watchdog_stop()
149 	if (err == 0)  in watchdog_stop()
154 	return err;  in watchdog_stop()
168 	int err = 0;  in watchdog_get_status()  local
177 		err = -ENODEV;  in watchdog_get_status()
185 	return err;  in watchdog_get_status()
197 	int err;  in watchdog_set_timeout()  local
209 		err = -ENODEV;  in watchdog_set_timeout()
213 	err = wddev->ops->set_timeout(wddev, timeout);  in watchdog_set_timeout()
217 	return err;  in watchdog_set_timeout()
231 	int err = 0;  in watchdog_get_timeleft()  local
240 		err = -ENODEV;  in watchdog_get_timeleft()
248 	return err;  in watchdog_get_timeleft()
261 	int err;  in watchdog_ioctl_op()  local
269 		err = -ENODEV;  in watchdog_ioctl_op()
273 	err = wddev->ops->ioctl(wddev, cmd, arg);  in watchdog_ioctl_op()
277 	return err;  in watchdog_ioctl_op()
339 	int err;  in watchdog_ioctl()  local
341 	err = watchdog_ioctl_op(wdd, cmd, arg);  in watchdog_ioctl()
342 	if (err != -ENOIOCTLCMD)  in watchdog_ioctl()
343 		return err;  in watchdog_ioctl()
350 		err = watchdog_get_status(wdd, &val);  in watchdog_ioctl()
351 		if (err == -ENODEV)  in watchdog_ioctl()
352 			return err;  in watchdog_ioctl()
360 			err = watchdog_stop(wdd);  in watchdog_ioctl()
361 			if (err < 0)  in watchdog_ioctl()
362 				return err;  in watchdog_ioctl()
365 			err = watchdog_start(wdd);  in watchdog_ioctl()
366 			if (err < 0)  in watchdog_ioctl()
367 				return err;  in watchdog_ioctl()
378 		err = watchdog_set_timeout(wdd, val);  in watchdog_ioctl()
379 		if (err < 0)  in watchdog_ioctl()
380 			return err;  in watchdog_ioctl()
392 		err = watchdog_get_timeleft(wdd, &val);  in watchdog_ioctl()
393 		if (err)  in watchdog_ioctl()
394 			return err;  in watchdog_ioctl()
413 	int err = -EBUSY;  in watchdog_open()  local
433 	err = watchdog_start(wdd);  in watchdog_open()
434 	if (err < 0)  in watchdog_open()
449 	return err;  in watchdog_open()
465 	int err = -EBUSY;  in watchdog_release()  local
473 		err = 0;  in watchdog_release()
476 		err = watchdog_stop(wdd);  in watchdog_release()
479 	if (err < 0) {  in watchdog_release()
525 	int err, devno;  in watchdog_dev_register()  local
530 		err = misc_register(&watchdog_miscdev);  in watchdog_dev_register()
531 		if (err != 0) {  in watchdog_dev_register()
533 				watchdog->info->identity, WATCHDOG_MINOR, err);  in watchdog_dev_register()
534 			if (err == -EBUSY)  in watchdog_dev_register()
538 			return err;  in watchdog_dev_register()
548 	err  = cdev_add(&watchdog->cdev, devno, 1);  in watchdog_dev_register()
549 	if (err) {  in watchdog_dev_register()
557 	return err;  in watchdog_dev_register()
589 	int err = alloc_chrdev_region(&watchdog_devt, 0, MAX_DOGS, "watchdog");  in watchdog_dev_init()  local
590 	if (err < 0)  in watchdog_dev_init()
592 	return err;  in watchdog_dev_init()