ocfs2: rollback transaction in ocfs2_group_add()
ocfs2: rollback transaction in ocfs2_group_add()

If ocfs2_journal_access_di() fails, group->bg_next_group should rollback.
Otherwise, there would be a inconsistency between group_bh and main_bm_bh.

Signed-off-by: Younger Liu <9f766cc6446dbd6dca57118beaee73420c3edc12@huawei.com>
Cc: Mark Fasheh <8f0bc92cac940f3e83deb53ced7a1f201bce5732@suse.com>
Acked-by: Joel Becker <9d3d88cacb47f143c6cf36b9a61c09b528b2c49a@evilplan.org>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs