diff --git a/sql/sql_plugin.cc b/sql/sql_plugin.cc
index e5d44d8..8d2a71b 100644
--- a/sql/sql_plugin.cc
+++ b/sql/sql_plugin.cc
@@ -934,9 +934,7 @@ static bool plugin_add(MEM_ROOT *tmp_root,
   mysql_mutex_assert_owner(&LOCK_plugin);
   if (plugin_find_internal(name_cstr, MYSQL_ANY_PLUGIN))
   {
-    mysql_mutex_unlock(&LOCK_plugin);
     report_error(report, ER_UDF_EXISTS, name->str);
-    mysql_mutex_lock(&LOCK_plugin);
     DBUG_RETURN(TRUE);
   }
   /* Clear the whole struct to catch future extensions. */
@@ -963,9 +961,7 @@ static bool plugin_add(MEM_ROOT *tmp_root,
         strxnmov(buf, sizeof(buf) - 1, "API version for ",
                  plugin_type_names[plugin->type].str,
                  " plugin is too different", NullS);
-        mysql_mutex_unlock(&LOCK_plugin);
         report_error(report, ER_CANT_OPEN_LIBRARY, dl->str, 0, buf);
-        mysql_mutex_lock(&LOCK_plugin);
         goto err;
       }
       tmp.plugin= plugin;
@@ -997,9 +993,7 @@ static bool plugin_add(MEM_ROOT *tmp_root,
       DBUG_RETURN(FALSE);
     }
   }
-  mysql_mutex_unlock(&LOCK_plugin);
   report_error(report, ER_CANT_FIND_DL_ENTRY, name->str);
-  mysql_mutex_lock(&LOCK_plugin);
 err:
   plugin_dl_del(dl);
   DBUG_RETURN(TRUE);