When ov_model_const_input_by_name/ov_model_const_output_by_name failed, input_port/output_port can be wild pointer. Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
When ov_model_const_input_by_name/ov_model_const_output_by_name failed, input_port/output_port can be wild pointer. Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>