btrfs: fix dip leak
The btrfs DIO code leaks dip structs when dip->csums allocation fails; bio->bi_end_io isn't set at the point where the free_ordered branch is consequently taken, thus bio_endio doesn't call the function which would free it in the normal case. Fix. Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Acked-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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