-/**
- * attach_by_scanning - attach an MTD device using scanning method.
- * @ubi: UBI device descriptor
- *
- * This function returns zero in case of success and a negative error code in
- * case of failure.
- *
- * Note, currently this is the only method to attach UBI devices. Hopefully in
- * the future we'll have more scalable attaching methods and avoid full media
- * scanning. But even in this case scanning will be needed as a fall-back
- * attaching method if there are some on-flash table corruptions.
- */
-static int attach_by_scanning(struct ubi_device *ubi)
-{
- int err;
- struct ubi_attach_info *ai;
-
- ai = ubi_scan(ubi);
- if (IS_ERR(ai))
- return PTR_ERR(ai);
-
- ubi->bad_peb_count = ai->bad_peb_count;
- ubi->good_peb_count = ubi->peb_count - ubi->bad_peb_count;
- ubi->corr_peb_count = ai->corr_peb_count;
- ubi->max_ec = ai->max_ec;
- ubi->mean_ec = ai->mean_ec;
- ubi_msg("max. sequence number: %llu", ai->max_sqnum);
-
- err = ubi_read_volume_table(ubi, ai);
- if (err)
- goto out_ai;
-
- err = ubi_wl_init_scan(ubi, ai);
- if (err)
- goto out_vtbl;
-
- err = ubi_eba_init_scan(ubi, ai);
- if (err)
- goto out_wl;
-
- ubi_destroy_ai(ai);
- return 0;
-
-out_wl:
- ubi_wl_close(ubi);
-out_vtbl:
- free_internal_volumes(ubi);
- vfree(ubi->vtbl);
-out_ai:
- ubi_destroy_ai(ai);
- return err;
-}
-