ref: 4219f692b155bf650c0918bffbbfa8d41dd670b6
parent: 774702b72beca0424f7998754e2f258dbb7086a6
author: Konstantinn Bonnet <qu7uux@gmail.com>
date: Thu Mar 12 08:44:46 EDT 2015
fix occasional double free on abnormal exit ... when heapsize is too small, and VID_Shutdown is called before framebuf is allocated.