PPS is not really the must-have subsystem that warrants crashing
the machine if the ldisc interface is broken.
Signed-off-by: NPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: NGeorge Spelvin <linux@horizon.com>
Acked-by: NRodolfo Giometti <giometti@enneenne.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>