From 0d7b792d05c5b93e672a57d84cdba3866be7481f Mon Sep 17 00:00:00 2001
From: Peter Veenstra <qbix79@users.sourceforge.net>
Date: Mon, 18 Oct 2010 13:49:31 +0000
Subject: [PATCH] Check return code of SDL_LockYUVOverlay. Should fix some rare
 crashes.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3650
---
 src/gui/sdlmain.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/sdlmain.cpp b/src/gui/sdlmain.cpp
index 1d004176..803a12f4 100644
--- a/src/gui/sdlmain.cpp
+++ b/src/gui/sdlmain.cpp
@@ -727,7 +727,7 @@ bool GFX_StartUpdate(Bit8u * & pixels,Bitu & pitch) {
 		return true;
 #endif
 	case SCREEN_OVERLAY:
-		SDL_LockYUVOverlay(sdl.overlay);
+		if (SDL_LockYUVOverlay(sdl.overlay)) return false;
 		pixels=(Bit8u *)*(sdl.overlay->pixels);
 		pitch=*(sdl.overlay->pitches);
 		sdl.updating=true;