Usually Fastmap is free to consider every PEB in one of the pools
as newer than the existing PEB. Since PEBs in a pool are by definition
newer than everything else.
But update_vol() missed the case that a pool can contain more than
one candidate.
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/mtd/ubi/fastmap.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index c5477299b66b..72e89b352034 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -326,6 +326,7 @@ static int update_vol(struct ubi_device *ubi, struct ubi_attach_info *ai,
aeb->pnum = new_aeb->pnum;
aeb->copy_flag = new_vh->copy_flag;
aeb->scrub = new_aeb->scrub;
+ aeb->sqnum = new_aeb->sqnum;
kmem_cache_free(ai->aeb_slab_cache, new_aeb);
/* new_aeb is older */
--
2.18.0
