Commit 52a05d0c authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/kbuf: don't compute size twice on prep 



The size in prep is calculated by io_provide_buffers_prep(), so remove
the recomputation a few lines after.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7c97206561b74fce245cb22449c6082d2e066844.1747150490.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 4e9fda29

io_uring/kbuf.c

+0 −2
Original line number Diff line number Diff line
@@ -509,8 +509,6 @@ int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe 
		return -EOVERFLOW;

	if (check_add_overflow((unsigned long)p->addr, size, &tmp_check))

		return -EOVERFLOW;



	size = (unsigned long)p->len * p->nbufs;

	if (!access_ok(u64_to_user_ptr(p->addr), size))

		return -EFAULT;