[IPV6]: Just increment OutDatagrams once per a datagram.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/udp.c

@@ -555,6 +555,8 @@ static int udp_v6_push_pending_frames(struct sock *sk)
 out:
 	up->len = 0;
 	up->pending = 0;
+	if (!err)
+		UDP6_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, up->pcflag);
 	return err;
 }
 
@@ -823,10 +825,8 @@ do_append_data:
 	release_sock(sk);
 out:
 	fl6_sock_release(flowlabel);
-	if (!err) {
-		UDP6_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
+	if (!err)
 		return len;
-	}
 	/*
 	 * ENOBUFS = no kernel mem, SOCK_NOSPACE = no sndbuf space.  Reporting
 	 * ENOBUFS might not be good (it's not tunable per se), but otherwise