fix baseinfo is nil

liuxiaolong

2019-07-27 e1a589c164d7f3c092d6111b61bb1c73f0c49efd

 controllers/cameraPolygon.go

@@ -116,7 +116,7 @@
   if flag {
      util.ResponseFormat(c,code.Success,data)
   } else {
      util.ResponseFormat(c,code.ComError,data)
      util.ResponseFormat(c,code.ComError,"更新失败")
   }
}