style: check device online error prompt

services/apiprovider/middleware.go

@@ -106,8 +106,8 @@ func CheckDeviceOnline(context martini.Context, params martini.Params, req *http
 	onlinereply := rpcs.ReplyGetDeviceOnlineStatus{}
 	err = server.RPCCallByName(nil, "devicemanager", "DeviceManager.GetDeviceOnlineStatus", onlineargs, &onlinereply)
 	if err != nil {
-		server.Log.Errorf("get devie online status error: %v", err)
-		r.JSON(http.StatusOK, renderError(ErrDeviceNotOnline, err))
+		server.Log.Errorf("get device online status error: %v", err)
+		r.JSON(http.StatusOK, renderError(ErrDeviceNotOnline, errors.Wrap(err, "get device online status error")))
 		return
 	}