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@vger.kernel.org Fixes: dbb7d2a88d ("UBI: Add fastmap core") Signed-off-by: Richard Weinberger richard@nod.at Reviewed-by: Boris Brezillon boris.brezillon@free-electrons.com Signed-off-by: Richard Weinberger richard@nod.at --- 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 */