From 371a8755c2bc9196a6e73dc5e4174fdbae8c5056 Mon Sep 17 00:00:00 2001
From: svdijk <svdijk@users.sourceforge.net>
Date: Sat, 20 May 2017 21:50:52 +0200
Subject: [PATCH] vid_glswfb: Prevent defunct windows.

---
 src/posix/sdl/sdlglvideo.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index e2318a1fb..6401e52cf 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -255,7 +255,10 @@ DFrameBuffer *SDLGLVideo::CreateFrameBuffer (int width, int height, bool bgra, b
 	{
 		fb = (SDLBaseFB*)CreateGLSWFrameBuffer(width, height, bgra, fullscreen);
 		if (!fb->IsValid())
+		{
+			delete fb;
 			fb = new SDLFB(width, height, bgra, fullscreen, nullptr);
+		}
 	}
 
 	retry = 0;