| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 106/107] ubi: Fix Fastmaps update_vol() | Date | Mon, 23 Jul 2018 14:42:40 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Richard Weinberger <richard@nod.at>
commit f7d11b33d4e8cedf19367c09b891bbc705163976 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/mtd/ubi/fastmap.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -326,6 +326,7 @@ static int update_vol(struct ubi_device 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 */
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