595 struct winch {  struct
607 	struct winch *winch = container_of(work, struct winch, work);  in __free_winch()  argument
608 	um_free_irq(WINCH_IRQ, winch);  in __free_winch()
610 	if (winch->pid != -1)  in __free_winch()
611 		os_kill_process(winch->pid, 1);  in __free_winch()
612 	if (winch->stack != 0)  in __free_winch()
613 		free_stack(winch->stack, 0);  in __free_winch()
614 	kfree(winch);  in __free_winch()
617 static void free_winch(struct winch *winch)  in free_winch()  argument
619 	int fd = winch->fd;  in free_winch()
620 	winch->fd = -1;  in free_winch()
623 	list_del(&winch->list);  in free_winch()
624 	__free_winch(&winch->work);  in free_winch()
629 	struct winch *winch = data;  in winch_interrupt()  local
632 	int fd = winch->fd;  in winch_interrupt()
640 				winch->fd = -1;  in winch_interrupt()
641 				list_del(&winch->list);  in winch_interrupt()
646 				       "support\n", winch->tty_fd);  in winch_interrupt()
647 				INIT_WORK(&winch->work, __free_winch);  in winch_interrupt()
648 				schedule_work(&winch->work);  in winch_interrupt()
654 	tty = tty_port_tty_get(winch->port);  in winch_interrupt()
665 	if (winch->fd != -1)  in winch_interrupt()
666 		reactivate_fd(winch->fd, WINCH_IRQ);  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) { .list  	= LIST_HEAD_INIT(winch->list),  in register_winch_irq()
689 			   IRQF_SHARED, "winch", winch) < 0) {  in register_winch_irq()
696 	list_add(&winch->list, &winch_handlers);  in register_winch_irq()
702 	kfree(winch);  in register_winch_irq()
713 	struct winch *winch;  in unregister_winch()  local
719 		winch = list_entry(ele, struct winch, list);  in unregister_winch()
720 		wtty = tty_port_tty_get(winch->port);  in unregister_winch()
722 			free_winch(winch);  in unregister_winch()
733 	struct winch *winch;  in winch_cleanup()  local
738 		winch = list_entry(ele, struct winch, list);  in winch_cleanup()
739 		free_winch(winch);  in winch_cleanup()