Only free EventData if it's successfully retrieved.

- straight from http://who-t.blogspot.com/2009/07/xi2-and-xlib-cookies.html - hopefully fixes random crash on some systems
libsdl-org · May 23, 2013 · 7b9f566 · 7b9f566
1 parent 03281c7
commit 7b9f566
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/video/x11/SDL_x11events.c b/src/video/x11/SDL_x11events.c
@@ -187,10 +187,11 @@ static char* X11_URIToLocal(char* uri) {
 #if SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS
 static void X11_HandleGenericEvent(SDL_VideoData *videodata,XEvent event)
 {
-    XGenericEventCookie *cookie = &event.xcookie;
-    XGetEventData(videodata->display, cookie);
-    X11_HandleXinput2Event(videodata,cookie);
-    XFreeEventData(videodata->display,cookie);
+    if (XGetEventData(videodata->display, &event)) {
+        XGenericEventCookie *cookie = &event.xcookie;
+        X11_HandleXinput2Event(videodata, cookie);
+        XFreeEventData(videodata->display, cookie);
+    }
 }
 #endif /* SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS */