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UBI: fix the volumes tree sorting criteria

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Commig "604b592 UBI: fix rb_tree node comparison in add_map"
broke fastmap backward compatibility and older fastmap images
cannot be mounted anymore. The reason is that it changes the
volumes RB-tree sorting criteria. This patch fixes the problem.

Artem: re-write the commit message

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Heiko Schocher 2014-06-24 09:25:18 +02:00 committed by Artem Bityutskiy
parent a497c3ba1d
commit e9110361a9
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/ubi/fastmap.c
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@ -125,7 +125,7 @@ static struct ubi_ainf_volume *add_vol(struct ubi_attach_info *ai, int vol_id,
parent = *p; parent = *p;
av = rb_entry(parent, struct ubi_ainf_volume, rb); av = rb_entry(parent, struct ubi_ainf_volume, rb);
if (vol_id < av->vol_id) if (vol_id > av->vol_id)
p = &(*p)->rb_left; p = &(*p)->rb_left;
else else
p = &(*p)->rb_right; p = &(*p)->rb_right;