Hi Linus, Andrew,

The comment of proc_tty_register_driver has "register_tty_driver()" which is 
"tty_register_driver()" in all drivers.

The comment of proc_tty_unregister_driver has "unregister_tty_driver()" which 
is "tty_unregister_driver()" in all drivers too.

Spelling error "Thsi" is obviously "This" ;)

Please apply.

ciao, Marc