Commit f0b92207 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/zcrx: warn on a repeated area append 



We only support a single area, no path should be able to call
io_zcrx_append_area() twice. Warn if that happens instead of just
returning an error.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/28eb67fb8c48445584d7c247a36e1ad8800f0c8b.1774261953.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 61cfadaa

io_uring/zcrx.c

+1 −1
Original line number Diff line number Diff line
@@ -423,7 +423,7 @@ static void io_zcrx_free_area(struct io_zcrx_ifq *ifq, 
static int io_zcrx_append_area(struct io_zcrx_ifq *ifq,

				struct io_zcrx_area *area)

{

	if (ifq->area)

	if (WARN_ON_ONCE(ifq->area))

		return -EINVAL;

	ifq->area = area;

	return 0;