From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 30 Mar 2022 17:06:02 +0000 (-0600)
Subject: io_uring: don't check req->file in io_fsync_prep()
X-Git-Tag: v5.16.20~62
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d63bd1bad8ed2dbd4d22931de677b3dfccec0f8c;p=thirdparty%2Fkernel%2Fstable.git

io_uring: don't check req->file in io_fsync_prep()

commit ec858afda857e361182ceafc3d2ba2b164b8e889 upstream.

This is a leftover from the really old days where we weren't able to
track and error early if we need a file and it wasn't assigned. Kill
the check.

Cc: stable@vger.kernel.org # v5.15+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/io_uring.c b/fs/io_uring.c
index d4db0b911896a..dd132b60f60a8 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4155,9 +4155,6 @@ static int io_fsync_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 	struct io_ring_ctx *ctx = req->ctx;
 
-	if (!req->file)
-		return -EBADF;
-
 	if (unlikely(ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
 	if (unlikely(sqe->addr || sqe->ioprio || sqe->buf_index ||