return nil
		}
		return err
	}
	defer syscall.FindClose(handle)

	for ; ; err = syscall.FindNextFile(handle, data) {
		if err != nil {
			if err == syscall.ERROR_NO_MORE_FILES {
				break
			}
			if isSysErrPathNotFound(err) {
				return nil
			}
			err = osErrToFileErr(&os.PathError{
				Op:   "FindNextFile",
				Path: dirPath,
				Err:  err,
			})
			if err == errFileNotFound {
				return nil
			}