golang优雅的错误处理

func parse(r io.Reader) (*Point, error) {
    var p Point
    var err error
    read := func(data interface{}) {
        if err != nil {
            return
        }
        err = binary.Read(r, binary.BigEndian, data)
    }

    read(&p.Longitude)
    read(&p.Latitude)
    read(&p.Distance)
    read(&p.ElevationGain)
    read(&p.ElevationLoss)

    if err != nil {
        return &p, err
    }
    return &p, nil
}