From 6c7259c83773f22f05159db51ca64d05057259f3 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Mon, 29 Aug 2022 14:30:22 +0100 Subject: [PATCH] io_uring: fail links when poll fails [ 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 Link: https://lore.kernel.org/r/a78aad962460f9fdfe4aa4c0b62425c88f9415bc.1655852245.git.asml.silence@gmail.com Signed-off-by: Jens Axboe [pavel: backport] Signed-off-by: Pavel Begunkov Signed-off-by: Greg Kroah-Hartman --- fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 2c8cc31..2eb33d0 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5844,6 +5844,8 @@ 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); -- 2.7.4