to #28736503

commit dddb3e26f6d88c5344d28cb5ff9d3d6fa05c4f7a upstream

We already have the buffer selected, but we should set the iter list
again.

Cc: stable@vger.kernel.org # v5.7
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NXiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Acked-by: NJoseph Qi <joseph.qi@linux.alibaba.com>