[DCCP] options: Fix handling of ackvecs in DATA packets

I.e. they should be just ignored, but we have to use 'break', not 'continue',
as we have to possibly reset the mandatory flag.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 8867b6f..0161a18 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -148,7 +148,7 @@
 		case DCCPO_ACK_VECTOR_0:
 		case DCCPO_ACK_VECTOR_1:
 			if (pkt_type == DCCP_PKT_DATA)
-				continue;
+				break;
 
 			if (dp->dccps_options.dccpo_send_ack_vector &&
 			    dccp_ackvec_parse(sk, skb, opt, value, len))