var io.ErrNoProgress

4 uses

	io (current package)
		io.go#L53: var ErrNoProgress = errors.New("multiple Read calls return no data or error")

	bufio
		bufio.go#L126: 	b.err = io.ErrNoProgress
		bufio.go#L811: 			return n, io.ErrNoProgress
		scan.go#L230: 				s.setErr(io.ErrNoProgress)