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ubi: Fix Fastmap's update_vol()

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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>
This commit is contained in:
Richard Weinberger 2016-08-24 14:36:15 +02:00
parent 2e8f08deab
commit f7d11b33d4
1 changed files with 1 additions and 0 deletions
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drivers/mtd/ubi/fastmap.c
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@ -304,6 +304,7 @@ 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;
ubi_free_aeb(ai, new_aeb);
/* new_aeb is older */