Make sure we take the return values into consideration so we can
break early in case of failures. This makes the ovs-ctl helper more
accurate in reporting the real status of its managing processes.
Signed-off-by: Markos Chandras <mchandras@suse.de>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Aaron Conole <aconole@redhat.com>