修复空指针异常

panlinlin

2020-12-27 6968839f21fb05bf6e3204c2040ee47130006cd0

 src/main/java/com/genersoft/iot/vmp/web/ApiStreamController.java

@@ -86,6 +86,8 @@
            JSONObject result = new JSONObject();
            result.put("error","timeout");
            resultDeferredResult.setResult(result);

             // 清理RTP server
        });

        DeviceChannel deviceChannel = storager.queryChannel(serial, code);