[ upstream commmit c487a5ad48831afa6784b368ec40d0ee50f2fe1b ]
Don't forget to cancel all linked requests of poll request when __io_arm_poll_handler() failed.
Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov asml.silence@gmail.com Link: https://lore.kernel.org/r/a78aad962460f9fdfe4aa4c0b62425c88f9415bc.165585224... Signed-off-by: Jens Axboe axboe@kernel.dk [pavel: backport] Signed-off-by: Pavel Begunkov asml.silence@gmail.com --- fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c index ac9fa3364c45..16b0ea1b5bf7 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5838,6 +5838,8 @@ static int io_poll_add(struct io_kiocb *req, unsigned int issue_flags) ipt.pt._qproc = io_poll_queue_proc;
ret = __io_arm_poll_handler(req, &req->poll, &ipt, poll->events); + if (!ret && ipt.error) + req_set_fail(req); ret = ret ?: ipt.error; if (ret) __io_req_complete(req, issue_flags, ret, 0);