ntfs_merge_mode_posix
int ntfs_merge_mode_posix(struct POSIX_SECURITY *pxdesc, mode_t mode);
if (ntfs_merge_mode_posix(newpxdesc, mode))
if (!newpxdesc || ntfs_merge_mode_posix(newpxdesc, mode))
if (ntfs_merge_mode_posix(newpxdesc, mode))
if (!newpxdesc || ntfs_merge_mode_posix(newpxdesc, mode))