From 09431292874e882e7e767072a80baca45d4fce33 Mon Sep 17 00:00:00 2001
From: turtled <turtled@emqtt.io>
Date: Wed, 4 Sep 2019 16:19:03 +0800
Subject: [PATCH] Fix credentials is null bug

---
 src/emqx_protocol.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/emqx_protocol.erl b/src/emqx_protocol.erl
index cc6bf1652..166adaf58 100644
--- a/src/emqx_protocol.erl
+++ b/src/emqx_protocol.erl
@@ -264,7 +264,7 @@ received(Packet = ?PACKET(?CONNECT), PState = #pstate{connected = false}) ->
     case check_max_clients() of
         true ->
             ?LOG(error, "Connection rejected due to max clients limitation"),
-            connack({?RC_QUOTA_EXCEEDED, PState});
+            connack({?RC_QUOTA_EXCEEDED, PState#pstate{credentials = credentials(PState)}});
         false ->
             do_received(Packet, PState)
     end;