Get the sctp partial delivery point using SCTP_PARTIAL_DELIVERY_POINT
socket option should return 0 if success, not -ENOTSUPP.
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>