Symbol: __tty_fasync
drivers/tty/tty_io.c
157
static int __tty_fasync(int fd, struct file *filp, int on);
drivers/tty/tty_io.c
1730
__tty_fasync(-1, filp, 0);
drivers/tty/tty_io.c
2252
retval = __tty_fasync(fd, filp, on);
drivers/tty/tty_io.c
611
__tty_fasync(-1, filp, 0); /* can't block */