If ports are not explicitly removed on the error path
the device will not get properly unregistered leaving
/dev/ttySC* nodes in the filesystem.
Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>