tty_buffer_cancel_work 1516 drivers/tty/tty_io.c 	tty_buffer_cancel_work(tty->port);
tty_buffer_cancel_work 1518 drivers/tty/tty_io.c 		tty_buffer_cancel_work(tty->link->port);
tty_buffer_cancel_work  248 drivers/tty/tty_port.c 	tty_buffer_cancel_work(port);
tty_buffer_cancel_work  515 include/linux/tty.h extern bool tty_buffer_cancel_work(struct tty_port *port);