[to #33454431] fix mysqltest & white scan

src/observer/dbms_job/ob_dbms_job_master.cpp

@@ -222,9 +222,7 @@ void ObDBMSJobThread::handle(void *task)
   if (OB_ISNULL(task)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_ERROR("null ptr", K(ret), K(task));
-  } else if (OB_ISNULL(master = static_cast<ObDBMSJobMaster *>(task))) {
-    ret = OB_ERR_UNEXPECTED;
-    LOG_ERROR("master is null", K(ret), K(master), K(task));
+  } else if (FALSE_IT(master = static_cast<ObDBMSJobMaster *>(task))) {
   } else if (OB_FAIL(master->scheduler())) {
     LOG_ERROR("fail to run dbms job master", K(ret));
   }

src/sql/engine/expr/ob_expr_udf.h

@@ -122,7 +122,7 @@ public:
   {
     return subprogram_path_.assign(path);
   }
-  inline void set_result_type(ObExprResType result_type) { result_type_ = result_type; }
+  inline void set_result_type(const ObExprResType &result_type) { result_type_ = result_type; }
   inline int set_params_type(common::ObIArray<ObExprResType> &params_type)
   {
     return params_type_.assign(params_type);