[IPV4]: 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/ipv4/udp.c

@@ -505,6 +505,8 @@ static int udp_push_pending_frames(struct sock *sk)
 out:
 	up->len = 0;
 	up->pending = 0;
+	if (!err)
+		UDP_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, up->pcflag);
 	return err;
 }
 
@@ -693,10 +695,8 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	ip_rt_put(rt);
 	if (free)
 		kfree(ipc.opt);
-	if (!err) {
-		UDP_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