[DCCP]: Don't alloc ack vector for the control sock

Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/dccp/ipv4.c

@@ -1041,12 +1041,6 @@ int dccp_v4_init_sock(struct sock *sk)
 	dccp_options_init(&dp->dccps_options);
 	do_gettimeofday(&dp->dccps_epoch);
 
-	if (dp->dccps_options.dccpo_send_ack_vector) {
-		dp->dccps_hc_rx_ackvec = dccp_ackvec_alloc(GFP_KERNEL);
-		if (dp->dccps_hc_rx_ackvec == NULL)
-			return -ENOMEM;
-	}
-
 	/*
 	 * FIXME: We're hardcoding the CCID, and doing this at this point makes
 	 * the listening (master) sock get CCID control blocks, which is not
@@ -1055,6 +1049,11 @@ int dccp_v4_init_sock(struct sock *sk)
 	 * setsockopt(CCIDs-I-want/accept). -acme
 	 */
 	if (likely(!dccp_ctl_socket_init)) {
+		if (dp->dccps_options.dccpo_send_ack_vector) {
+			dp->dccps_hc_rx_ackvec = dccp_ackvec_alloc(GFP_KERNEL);
+			if (dp->dccps_hc_rx_ackvec == NULL)
+				return -ENOMEM;
+		}
 		dp->dccps_hc_rx_ccid = ccid_init(dp->dccps_options.dccpo_rx_ccid,
 						 sk);
 		dp->dccps_hc_tx_ccid = ccid_init(dp->dccps_options.dccpo_tx_ccid,