591 struct winch {  struct
603 	struct winch *winch = container_of(work, struct winch, work);  in __free_winch()  argument
604 	um_free_irq(WINCH_IRQ, winch);  in __free_winch()
606 	if (winch->pid != -1)  in __free_winch()
607 		os_kill_process(winch->pid, 1);  in __free_winch()
608 	if (winch->stack != 0)  in __free_winch()
609 		free_stack(winch->stack, 0);  in __free_winch()
610 	kfree(winch);  in __free_winch()
613 static void free_winch(struct winch *winch)  in free_winch()  argument
615 	int fd = winch->fd;  in free_winch()
616 	winch->fd = -1;  in free_winch()
619 	__free_winch(&winch->work);  in free_winch()
624 	struct winch *winch = data;  in winch_interrupt()  local
627 	int fd = winch->fd;  in winch_interrupt()
637 				winch->fd = -1;  in winch_interrupt()
638 				list_del(&winch->list);  in winch_interrupt()
644 					       winch->tty_fd);  in winch_interrupt()
646 				INIT_WORK(&winch->work, __free_winch);  in winch_interrupt()
647 				schedule_work(&winch->work);  in winch_interrupt()
653 	tty = tty_port_tty_get(winch->port);  in winch_interrupt()
673 	struct winch *winch;  in register_winch_irq()  local
675 	winch = kmalloc(sizeof(*winch), GFP_KERNEL);  in register_winch_irq()
676 	if (winch == NULL) {  in register_winch_irq()
681 	*winch = ((struct winch) { .fd  	= fd,  in register_winch_irq()
688 	list_add(&winch->list, &winch_handlers);  in register_winch_irq()
692 			   IRQF_SHARED, "winch", winch) < 0) {  in register_winch_irq()
696 		list_del(&winch->list);  in register_winch_irq()
704 	kfree(winch);  in register_winch_irq()
715 	struct winch *winch;  in unregister_winch()  local
721 		winch = list_entry(ele, struct winch, list);  in unregister_winch()
722 		wtty = tty_port_tty_get(winch->port);  in unregister_winch()
724 			list_del(&winch->list);  in unregister_winch()
726 			free_winch(winch);  in unregister_winch()
736 	struct winch *winch;  in winch_cleanup()  local
739 	while ((winch = list_first_entry_or_null(&winch_handlers,  in winch_cleanup()
740 						 struct winch, list))) {  in winch_cleanup()
741 		list_del(&winch->list);  in winch_cleanup()
744 		free_winch(winch);  in winch_cleanup()