From 5537eba4865fae2f9677e6dbc259d6165b55c107 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 7 Jan 2012 22:52:41 -0500
Subject: [PATCH] Fixed bug 1333 - segfault if opengl window could not get
 created

When the window couldn't be created, the normal window destruction process happens, which among other things, destroys the framebuffer, if any.
---
 src/video/windows/SDL_windowsframebuffer.c | 5 +++++
 src/video/x11/SDL_x11framebuffer.c         | 9 ++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/video/windows/SDL_windowsframebuffer.c b/src/video/windows/SDL_windowsframebuffer.c
index 53ee5560a..cf28add64 100755
--- a/src/video/windows/SDL_windowsframebuffer.c
+++ b/src/video/windows/SDL_windowsframebuffer.c
@@ -113,6 +113,11 @@ void WIN_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
 {
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
 
+    if (!data) {
+        /* The window wasn't fully initialized */
+        return;
+    }
+
     if (data->mdc) {
         DeleteDC(data->mdc);
         data->mdc = NULL;
diff --git a/src/video/x11/SDL_x11framebuffer.c b/src/video/x11/SDL_x11framebuffer.c
index 7344e6276..9eb015e34 100755
--- a/src/video/x11/SDL_x11framebuffer.c
+++ b/src/video/x11/SDL_x11framebuffer.c
@@ -193,7 +193,14 @@ void
 X11_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
 {
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
-    Display *display = data->videodata->display;
+    Display *display;
+
+    if (!data) {
+        /* The window wasn't fully initialized */
+        return;
+    }
+
+    display = data->videodata->display;
 
     if (data->ximage) {
         XDestroyImage(data->ximage);