tty_register_ldisc(N_FOO, NULL) => tty_unregister_ldisc(N_FOO)
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>