var io/fs.ErrClosed

3 uses

	io/fs (current package)
		fs.go#L140: 	ErrClosed     = errClosed()     // "file already closed"

	golang.org/x/net/http2
		transport.go#L3052: 	gz.zerr = fs.ErrClosed

	os
		error.go#L25: 	ErrClosed     = fs.ErrClosed     // "file already closed"