io_uring: don't double complete failed reissue request

mainline inclusion
from mainline-v5.10-rc5
commit c993df5a
category: bugfix
bugzilla: 186136, https://gitee.com/openeuler/kernel/issues/I4RM1D


CVE: NA

-------------------------------------------------

Zorro reports that an xfstest test case is failing, and it turns out that
for the reissue path we can potentially issue a double completion on the
request for the failure path. There's an issue around the retry as well,
but for now, at least just make sure that we handle the error path
correctly.

Cc: stable@vger.kernel.org
Fixes: b63534c4 ("io_uring: re-issue block requests that failed because of resources")
Reported-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
conflict:
        fs/io_uring.c
Change based on e1e16097 ("io_uring: provide generic
io_req_complete() helper")
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>