Goroutine leak

func TimeoutCoder(f func(interface{}) error, e interface{}, msg string) error {
    echan := make(chan error, 1)
    go func() { echan <- f(e) }()
    select {
    case e := <-echan:
        return e
    case <-time.After(time.Minute):
        return fmt.Errorf("Timeout %s", msg)
    }
}

go func() { echan <- f(e) }()，this Goroutine leak。