From 1c832701841b097178e1919a565b77c0d4ec0dcd Mon Sep 17 00:00:00 2001
From: Gilbert Wong <gilbertwong96@icloud.com>
Date: Tue, 21 May 2019 10:14:04 +0800
Subject: [PATCH] Add case clause for emqx_sn and emqx_coap plugin

---
 src/emqx_protocol.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/emqx_protocol.erl b/src/emqx_protocol.erl
index 4ac683938..bf6d0a2e7 100644
--- a/src/emqx_protocol.erl
+++ b/src/emqx_protocol.erl
@@ -695,6 +695,9 @@ deliver({disconnect, _ReasonCode}, PState) ->
 -spec(send(emqx_mqtt_types:packet(), state()) -> {ok, state()} | {error, term()}).
 send(Packet = ?PACKET(Type), PState = #pstate{proto_ver = Ver, sendfun = Send}) ->
     case Send(Packet, #{version => Ver}) of
+        ok ->
+            trace(send, Packet),
+            {ok, PState};
         {ok, Data} ->
             trace(send, Packet),
             emqx_metrics:sent(Packet),