Re: [PATCH] tty: vt: keyboard: do not copy an extra-byte in copy_to_user

Ajay wants to be safe and he thinks, that relying on fact, that
strlen(func_table[kb_func]) < sizeof(user_kdgkb->kb_string) is not good
approach, since it's external for vt_do_kdgkb_ioctl. (I hope, I've
explained his idea in the right way)

That's right Pavel.
Every function must work correctly as it "advertises", instead of
relying on "chancy correctness" of the calls leading to the method.