static int sx_chars_in_buffer(struct tty_struct *tty){	struct specialix_port *port = (struct specialix_port *)tty->driver_data;	func_enter();		if (sx_paranoia_check(port, tty->name, "sx_chars_in_buffer")) {		func_exit();		return 0;	}	func_exit();	return port->xmit_cnt;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/d61780c0d384939ef31c46b47442854d5def4623/specialix.c/buggy/drivers/char/specialix.c