589 struct winch {  struct
601 	struct winch *winch = container_of(work, struct winch, work);  in __free_winch()  argument
602 	um_free_irq(WINCH_IRQ, winch);  in __free_winch()
604 	if (winch->pid != -1)  in __free_winch()
605 		os_kill_process(winch->pid, 1);  in __free_winch()
606 	if (winch->stack != 0)  in __free_winch()
607 		free_stack(winch->stack, 0);  in __free_winch()
608 	kfree(winch);  in __free_winch()
611 static void free_winch(struct winch *winch)  in free_winch()  argument
613 	int fd = winch->fd;  in free_winch()
614 	winch->fd = -1;  in free_winch()
617 	__free_winch(&winch->work);  in free_winch()
622 	struct winch *winch = data;  in winch_interrupt()  local
625 	int fd = winch->fd;  in winch_interrupt()
634 				winch->fd = -1;  in winch_interrupt()
635 				list_del(&winch->list);  in winch_interrupt()
640 				       "support\n", winch->tty_fd);  in winch_interrupt()
641 				INIT_WORK(&winch->work, __free_winch);  in winch_interrupt()
642 				schedule_work(&winch->work);  in winch_interrupt()
648 	tty = tty_port_tty_get(winch->port);  in winch_interrupt()
668 	struct winch *winch;  in register_winch_irq()  local
670 	winch = kmalloc(sizeof(*winch), GFP_KERNEL);  in register_winch_irq()
671 	if (winch == NULL) {  in register_winch_irq()
676 	*winch = ((struct winch) { .list  	= LIST_HEAD_INIT(winch->list),  in register_winch_irq()
684 			   IRQF_SHARED, "winch", winch) < 0) {  in register_winch_irq()
691 	list_add(&winch->list, &winch_handlers);  in register_winch_irq()
697 	kfree(winch);  in register_winch_irq()
708 	struct winch *winch;  in unregister_winch()  local
714 		winch = list_entry(ele, struct winch, list);  in unregister_winch()
715 		wtty = tty_port_tty_get(winch->port);  in unregister_winch()
717 			list_del(&winch->list);  in unregister_winch()
719 			free_winch(winch);  in unregister_winch()
729 	struct winch *winch;  in winch_cleanup()  local
732 	while ((winch = list_first_entry_or_null(&winch_handlers,  in winch_cleanup()
733 						 struct winch, list))) {  in winch_cleanup()
734 		list_del(&winch->list);  in winch_cleanup()
737 		free_winch(winch);  in winch_cleanup()