fix segfault in Fake_glXCreatePBuffer(), bug 4235

2005-08-25 14:07:06 +00:00
parent 7e6553c1aa
commit dd1a9f75dc
1 changed files with 4 additions and 1 deletions
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -2099,7 +2099,10 @@ Fake_glXCreatePbuffer( Display *dpy, GLXFBConfig config,
   /* A GLXPbuffer handle must be an X Drawable because that's what
    * glXMakeCurrent takes.
    */
-   return (GLXPbuffer) xmbuf->frontxrb->pixmap;
+   if (xmbuf)
+      return (GLXPbuffer) xmbuf->frontxrb->pixmap;
+   else
+      return 0;
 }