From f3d973689b0c52fe600771054e0b72789a598362 Mon Sep 17 00:00:00 2001
From: Zaiming Shi <zmstone@gmail.com>
Date: Fri, 6 Nov 2020 13:49:29 +0100
Subject: [PATCH] fix(emqx_listeners): Dialyzer warnings

---
 src/emqx_listeners.erl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/emqx_listeners.erl b/src/emqx_listeners.erl
index ce256d147..3b642d55f 100644
--- a/src/emqx_listeners.erl
+++ b/src/emqx_listeners.erl
@@ -124,10 +124,10 @@ restart_listener(tcp, ListenOn, _Options) ->
 restart_listener(Proto, ListenOn, _Options) when Proto == ssl; Proto == tls ->
     esockd:reopen('mqtt:ssl', ListenOn);
 restart_listener(Proto, ListenOn, Options) when Proto == http; Proto == ws ->
-    cowboy:stop_listener(ws_name('mqtt:ws', ListenOn)),
+    _ = cowboy:stop_listener(ws_name('mqtt:ws', ListenOn)),
     start_listener(Proto, ListenOn, Options);
 restart_listener(Proto, ListenOn, Options) when Proto == https; Proto == wss ->
-    cowboy:stop_listener(ws_name('mqtt:wss', ListenOn)),
+    _ = cowboy:stop_listener(ws_name('mqtt:wss', ListenOn)),
     start_listener(Proto, ListenOn, Options);
 restart_listener(Proto, ListenOn, _Opts) ->
     esockd:reopen(Proto, ListenOn).