Found using clang:

cr-restore.c:796:8: error: use of unary operator that may be intended as compound assignment (+=)
                size =+ ret;
                     ^~
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>