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path: root/drivers/mtd/ubi/scan.c
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Diffstat (limited to 'drivers/mtd/ubi/scan.c')
-rw-r--r--drivers/mtd/ubi/scan.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index c3d653ba5ca0..f60895ee0aeb 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -757,6 +757,8 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
757 si->is_empty = 0; 757 si->is_empty = 0;
758 758
759 if (!ec_corr) { 759 if (!ec_corr) {
760 int image_seq;
761
760 /* Make sure UBI version is OK */ 762 /* Make sure UBI version is OK */
761 if (ech->version != UBI_VERSION) { 763 if (ech->version != UBI_VERSION) {
762 ubi_err("this UBI version is %d, image version is %d", 764 ubi_err("this UBI version is %d, image version is %d",
@@ -778,6 +780,18 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
778 ubi_dbg_dump_ec_hdr(ech); 780 ubi_dbg_dump_ec_hdr(ech);
779 return -EINVAL; 781 return -EINVAL;
780 } 782 }
783
784 image_seq = be32_to_cpu(ech->ec);
785 if (!si->image_seq_set) {
786 ubi->image_seq = image_seq;
787 si->image_seq_set = 1;
788 } else if (ubi->image_seq != image_seq) {
789 ubi_err("bad image sequence number %d in PEB %d, "
790 "expected %d", image_seq, pnum, ubi->image_seq);
791 ubi_dbg_dump_ec_hdr(ech);
792 return -EINVAL;
793 }
794
781 } 795 }
782 796
783 /* OK, we've done with the EC header, let's look at the VID header */ 797 /* OK, we've done with the EC header, let's look at the VID header */