596 struct winch {  struct
608 	struct winch *winch = container_of(work, struct winch, work);  in __free_winch()  argument
609 	um_free_irq(WINCH_IRQ, winch);  in __free_winch()
611 	if (winch->pid != -1)  in __free_winch()
612 		os_kill_process(winch->pid, 1);  in __free_winch()
613 	if (winch->stack != 0)  in __free_winch()
614 		free_stack(winch->stack, 0);  in __free_winch()
615 	kfree(winch);  in __free_winch()
618 static void free_winch(struct winch *winch)  in free_winch()  argument
620 	int fd = winch->fd;  in free_winch()
621 	winch->fd = -1;  in free_winch()
624 	list_del(&winch->list);  in free_winch()
625 	__free_winch(&winch->work);  in free_winch()
630 	struct winch *winch = data;  in winch_interrupt()  local
633 	int fd = winch->fd;  in winch_interrupt()
642 				winch->fd = -1;  in winch_interrupt()
643 				list_del(&winch->list);  in winch_interrupt()
648 				       "support\n", winch->tty_fd);  in winch_interrupt()
649 				INIT_WORK(&winch->work, __free_winch);  in winch_interrupt()
650 				schedule_work(&winch->work);  in winch_interrupt()
656 	tty = tty_port_tty_get(winch->port);  in winch_interrupt()
670 	if (winch->fd != -1)  in winch_interrupt()
671 		reactivate_fd(winch->fd, WINCH_IRQ);  in winch_interrupt()
678 	struct winch *winch;  in register_winch_irq()  local
680 	winch = kmalloc(sizeof(*winch), GFP_KERNEL);  in register_winch_irq()
681 	if (winch == NULL) {  in register_winch_irq()
686 	*winch = ((struct winch) { .list  	= LIST_HEAD_INIT(winch->list),  in register_winch_irq()
694 			   IRQF_SHARED, "winch", winch) < 0) {  in register_winch_irq()
701 	list_add(&winch->list, &winch_handlers);  in register_winch_irq()
707 	kfree(winch);  in register_winch_irq()
718 	struct winch *winch;  in unregister_winch()  local
724 		winch = list_entry(ele, struct winch, list);  in unregister_winch()
725 		wtty = tty_port_tty_get(winch->port);  in unregister_winch()
727 			free_winch(winch);  in unregister_winch()
738 	struct winch *winch;  in winch_cleanup()  local
743 		winch = list_entry(ele, struct winch, list);  in winch_cleanup()
744 		free_winch(winch);  in winch_cleanup()