From 703a8d3effa48626d7057cd773abd81268d1848d Mon Sep 17 00:00:00 2001
From: Zhongwen Deng <zhongwencool@gmail.com>
Date: Tue, 10 May 2022 15:47:16 +0800
Subject: [PATCH] fix: clear cert crash when config is undefined

---
 apps/emqx_connector/src/emqx_connector_ssl.erl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/emqx_connector/src/emqx_connector_ssl.erl b/apps/emqx_connector/src/emqx_connector_ssl.erl
index e20596b6c..c08defc29 100644
--- a/apps/emqx_connector/src/emqx_connector_ssl.erl
+++ b/apps/emqx_connector/src/emqx_connector_ssl.erl
@@ -30,6 +30,8 @@ convert_certs(RltvDir, NewConfig) ->
             {error, {bad_ssl_config, Reason}}
     end.
 
+clear_certs(_RltvDir, undefined) ->
+    ok;
 clear_certs(RltvDir, Config) ->
     OldSSL = map_get_oneof([<<"ssl">>, ssl], Config, undefined),
     ok = emqx_tls_lib:delete_ssl_files(RltvDir, undefined, OldSSL).