From a88c023b844e6577ff4c307943c66af0357e4699 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Sun, 13 Jun 2021 16:20:14 +0300
Subject: [PATCH] Do not free VRAM if it was already freed.

---
 gfxboard.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gfxboard.cpp b/gfxboard.cpp
index 63c23cdb..e20661a1 100644
--- a/gfxboard.cpp
+++ b/gfxboard.cpp
@@ -3092,11 +3092,11 @@ static void gfxboard_free_board(struct rtggfxboard *gb)
 			gb->pcemobject = NULL;
 		}
 	}
-	if (gb->vram) {
+	if (gb->vram && gb->gfxmem_bank->baseaddr) {
 		gb->gfxmem_bank->baseaddr = gb->vramrealstart;
 		gfxboard_free_vram(gb->rbc->rtg_index);
-		gb->gfxmem_bank = NULL;
 	}
+	gb->gfxmem_bank = NULL;
 	gb->vram = NULL;
 	gb->vramrealstart = NULL;
 	xfree(gb->fakesurface_surface);
-- 
2.47.3