sctp: don't break the loop while meeting the active_path so as to find the matched transport

sctp_assoc_lookup_tsn() function searchs which transport a certain TSN
was sent on, if not found in the active_path transport, then go search
all the other transports in the peer's transport_addr_list, however, we
should continue to the next entry rather than break the loop when meet
the active_path transport.

Signed-off-by: Xufeng Zhang <[e-mail]>
Acked-by: Neil Horman <[e-mail]>
Acked-by: Vlad Yasevich <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/sctp/associola.c

···
 			transports) {
 
 		if (transport == active)
-			break;
+			continue;
 		list_for_each_entry(chunk, &transport->transmitted,
 				transmitted_list) {
 			if (key == chunk->subh.data_hdr->tsn) {