ceph: cleanup use of ceph_msg_get

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>

fs/ceph/mds_client.c

@@ -2524,8 +2524,7 @@ out_err:
 		if (err) {
 			req->r_err = err;
 		} else {
-			req->r_reply = msg;
-			ceph_msg_get(msg);
+			req->r_reply =  ceph_msg_get(msg);
 			req->r_got_result = true;
 		}
 	} else {