sctp: move skb_dst_set() a bit downwards in sctp_packet_transmit()
skb_dst_set will use dst, if dst is NULL although is not a problem, then goto the 'no_route' and free nskb, so do the skb_dst_set is pointless. so move the skb_dst_set after dst check. Remove the unnecessary initialization as well. v2: fix the subject line because it would confuse people, as pointed out by Daniel. Signed-off-by: NWang Weidong <wangweidong1@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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