tree c3a2a3296511e46507a1431088bca3113e21cee5
parent 1e948479b3d63e3ac0ecca13cbf4921c7d17c168
author Johan Hovold <johan@kernel.org> 1493202604 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1495118635 +0200

tty: ehv_bytechan: clean up init error handling

Straighten out the initcall error handling to avoid deregistering a
never-registered tty driver (something which would lead to a
NULL-pointer dereference) in the most unlikely event that driver
registration fails (e.g. we've run out of major numbers).

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>