io_uring/msg_ring: cleanup posting to IOPOLL vs !IOPOLL ring

Move the posting outside the checking and locking, it's cleaner that
way.
Signed-off-by: Jens Axboe <axboe@kernel.dk>

io_uring/msg_ring.c

@@ -147,13 +147,11 @@ static int io_msg_ring_data(struct io_kiocb *req, unsigned int issue_flags)
 	if (target_ctx->flags & IORING_SETUP_IOPOLL) {
 		if (unlikely(io_double_lock_ctx(target_ctx, issue_flags)))
 			return -EAGAIN;
+	}
 	if (io_post_aux_cqe(target_ctx, msg->user_data, msg->len, flags))
 		ret = 0;
+	if (target_ctx->flags & IORING_SETUP_IOPOLL)
 		io_double_unlock_ctx(target_ctx);
-	} else {
-		if (io_post_aux_cqe(target_ctx, msg->user_data, msg->len, flags))
-			ret = 0;
-	}
 	return ret;
 }