From 484827bdeb34b6efe46e2cb1c041f44aad6265a0 Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Sun, 20 Feb 2022 10:32:40 -0500
Subject: [PATCH] Should get lock before testing for connected

---
 src/zm_db.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/zm_db.cpp b/src/zm_db.cpp
index 7224241b4..7db61e157 100644
--- a/src/zm_db.cpp
+++ b/src/zm_db.cpp
@@ -107,8 +107,8 @@ bool zmDbConnect() {
 }
 
 void zmDbClose() {
+  std::lock_guard<std::mutex> lck(db_mutex);
   if (zmDbConnected) {
-    std::lock_guard<std::mutex> lck(db_mutex);
     mysql_close(&dbconn);
     // mysql_init() call implicitly mysql_library_init() but
     // mysql_close() does not call mysql_library_end()