Merge tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Two small patches:

   - Fix using an unsigned type for the return value, introduced in this
     release (Pavel)

   - Stable fix for a missing check for a fixed file on put (me)"

* tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
  io_uring/msg_ring: check file type before putting
  io_uring/rw: fix error'ed retry return values

Author: torvalds

io_uring/msg_ring.c

@@ -165,7 +165,8 @@ int io_msg_ring(struct io_kiocb *req, unsigned int issue_flags)
 		req_set_fail(req);
 	io_req_set_res(req, ret, 0);
 	/* put file to avoid an attempt to IOPOLL the req */
-	io_put_file(req->file);
+	if (!(req->flags & REQ_F_FIXED_FILE))
+		io_put_file(req->file);
 	req->file = NULL;
 	return IOU_OK;
 }

io_uring/rw.c

@@ -206,7 +206,7 @@ static bool __io_complete_rw_common(struct io_kiocb *req, long res)
 	return false;
 }
 
-static inline unsigned io_fixup_rw_res(struct io_kiocb *req, unsigned res)
+static inline int io_fixup_rw_res(struct io_kiocb *req, long res)
 {
 	struct io_async_rw *io = req->async_data;