From f7f25230304257d82c4c5021ce4cdcfd79cebe9b Mon Sep 17 00:00:00 2001
From: Shawn <506895667@qq.com>
Date: Sat, 17 Jul 2021 10:38:30 +0800
Subject: [PATCH] fix(dialyzer): handle undefined conf in post_update_config/2

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

diff --git a/apps/emqx_authz/src/emqx_authz.erl b/apps/emqx_authz/src/emqx_authz.erl
index 5458a3d01..3c5fafb8e 100644
--- a/apps/emqx_authz/src/emqx_authz.erl
+++ b/apps/emqx_authz/src/emqx_authz.erl
@@ -63,6 +63,9 @@ handle_update_config({_, NewConf}, _OldConf) ->
         false -> [NewConf]
     end.
 
+post_update_config(undefined, _OldConf) ->
+    %_ = [release_rules(Rule) || Rule <- OldConf],
+    ok;
 post_update_config(NewRules, _OldConf) ->
     %_ = [release_rules(Rule) || Rule <- OldConf],
     InitedRules = [init_rule(Rule) || Rule <- NewRules],