num_entries = p_fs->fs_func->calc_num_entries(p_uniname);
        if (num_entries == 0)
-               return FFS_INVALIDPATH;
+               return -EINVAL;
 
        if (p_fs->vol_type != EXFAT) {
                nls_uniname_to_dosname(sb, p_dosname, p_uniname, &lossy);
                } else {
                        for (r = reserved_names; *r; r++) {
                                if (!strncmp((void *)p_dosname->name, *r, 8))
-                                       return FFS_INVALIDPATH;
+                                       return -EINVAL;
                        }
 
                        if (p_dosname->name_case != 0xFF)
        struct file_id_t *fid = &(EXFAT_I(inode)->fid);
 
        if (strscpy(name_buf, path, sizeof(name_buf)) < 0)
-               return FFS_INVALIDPATH;
+               return -EINVAL;
 
        nls_cstring_to_uniname(sb, p_uniname, name_buf, &lossy);
        if (lossy)
-               return FFS_INVALIDPATH;
+               return -EINVAL;
 
        fid->size = i_size_read(inode);
 
        /* check if the source and target directory is the same */
        if (fs_func->get_entry_type(epmov) == TYPE_DIR &&
            fs_func->get_entry_clu0(epmov) == p_newdir->dir)
-               return FFS_INVALIDPATH;
+               return -EINVAL;
 
        buf_lock(sb, sector_mov);
 
 
 
        err = ffsCreateFile(dir, (u8 *)dentry->d_name.name, FM_REGULAR, &fid);
        if (err) {
-               if (err == FFS_INVALIDPATH)
+               if (err == -EINVAL)
                        err = -EINVAL;
                else if (err == -EEXIST)
                        err = -EEXIST;
 
        err = ffsCreateFile(dir, (u8 *)dentry->d_name.name, FM_SYMLINK, &fid);
        if (err) {
-               if (err == FFS_INVALIDPATH)
+               if (err == -EINVAL)
                        err = -EINVAL;
                else if (err == -EEXIST)
                        err = -EEXIST;
 
        err = ffsCreateDir(dir, (u8 *)dentry->d_name.name, &fid);
        if (err) {
-               if (err == FFS_INVALIDPATH)
+               if (err == -EINVAL)
                        err = -EINVAL;
                else if (err == -EEXIST)
                        err = -EEXIST;
 
        err = ffsRemoveDir(dir, &(EXFAT_I(inode)->fid));
        if (err) {
-               if (err == FFS_INVALIDPATH)
+               if (err == -EINVAL)
                        err = -EINVAL;
                else if (err == -EEXIST)
                        err = -ENOTEMPTY;
        if (err) {
                if (err == -EPERM)
                        err = -EPERM;
-               else if (err == FFS_INVALIDPATH)
+               else if (err == -EINVAL)
                        err = -EINVAL;
                else if (err == -EEXIST)
                        err = -EEXIST;