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io_uring: fix provided buffer return on failure for kiocb_done() 

Use io_req_complete_failed() in kiocb_done(). This cleans up the code,
but also ensures that a provided buffers is correctly freed on failure.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a4880106fcf199d5810707fe2d17126fcdf18bc4.1647481208.git.asml.silence@gmail.com
[axboe: split from previous patch]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2022-03-16 20:24:47 -06:00 committed by Jens Axboe
parent 3b2b78a8eb
commit b91ef18728
1 changed files with 3 additions and 7 deletions
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10
fs/io_uring.c
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@ -3242,14 +3242,10 @@ static void kiocb_done(struct io_kiocb *req, ssize_t ret,
if (req->flags & REQ_F_REISSUE) {
req->flags &= ~REQ_F_REISSUE;
if (io_resubmit_prep(req)) {
if (io_resubmit_prep(req))
io_req_task_queue_reissue(req);
} else {
req_set_fail(req);
req->result = ret;
req->io_task_work.func = io_req_task_complete;
io_req_task_work_add(req, false);
}
else
io_req_task_queue_fail(req, ret);
}
}