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tty: ehv_bytechan: clean up init error handling
authorJohan Hovold <johan@kernel.org>
Wed, 26 Apr 2017 10:30:04 +0000 (12:30 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 May 2017 14:43:55 +0000 (16:43 +0200)
commit11d4d32158eeaf36fe1073a4a260193d7a19ccf1
treec3a2a3296511e46507a1431088bca3113e21cee5tree | snapshot (tar.gz zip)
parent1e948479b3d63e3ac0ecca13cbf4921c7d17c168commit | diff
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>
drivers/tty/ehv_bytechan.c diff | blob | blame | history