dm: do not return target from dm_get_live_table_for_ioctl()

None of the callers actually used the returned target.
Also, just reuse bdev pointer passed to dm_blk_ioctl().

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2016-02-18 15:44:39 -05:00
commit 664820265d