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Commit f4b9a988 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6 

* 'for-linus' of git://git.infradead.org/ubi-2.6:
  UBI: compatible fallback in absense of sequence numbers
  UBI: fix double free on error path
parents 17d11ba1 32bc4820

drivers/mtd/ubi/eba.c

+1 −0
Original line number Diff line number Diff line
@@ -1254,6 +1254,7 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) 
		if (!ubi->volumes[i])

			continue;

		kfree(ubi->volumes[i]->eba_tbl);

		ubi->volumes[i]->eba_tbl = NULL;

	}

	return err;

}

drivers/mtd/ubi/scan.c

+12 −1
Original line number Diff line number Diff line
@@ -781,11 +781,22 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, 
			return -EINVAL;

		}



		/*

		 * Make sure that all PEBs have the same image sequence number.

		 * This allows us to detect situations when users flash UBI

		 * images incorrectly, so that the flash has the new UBI image

		 * and leftovers from the old one. This feature was added

		 * relatively recently, and the sequence number was always

		 * zero, because old UBI implementations always set it to zero.

		 * For this reasons, we do not panic if some PEBs have zero

		 * sequence number, while other PEBs have non-zero sequence

		 * number.

		 */

		image_seq = be32_to_cpu(ech->image_seq);

		if (!si->image_seq_set) {

			ubi->image_seq = image_seq;

			si->image_seq_set = 1;

		} else if (ubi->image_seq != image_seq) {

		} else if (ubi->image_seq && ubi->image_seq != image_seq) {

			ubi_err("bad image sequence number %d in PEB %d, "

				"expected %d", image_seq, pnum, ubi->image_seq);

			ubi_dbg_dump_ec_hdr(ech);