Mesa (master): glx: Fix another use-after-free problem

[Kristian Høgsberg]

Module: Mesa
Branch: master
Commit: 80e48ddcf6d5bdc1fc063f28b7af478dae330233
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=80e48ddcf6d5bdc1fc063f28b7af478dae330233

Author: Kristian Høgsberg <krh at bitplanet.net>
Date:   Thu Sep  9 08:06:40 2010 -0400

glx: Fix another use-after-free problem

---

 src/glx/glx_pbuffer.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/glx/glx_pbuffer.c b/src/glx/glx_pbuffer.c
index d1cb66b..34892e8 100644
--- a/src/glx/glx_pbuffer.c
+++ b/src/glx/glx_pbuffer.c
@@ -220,12 +220,14 @@ DestroyDRIDrawable(Display *dpy, GLXDrawable drawable, int destroy_xdrawable)
 {
    struct glx_display *const priv = __glXInitialize(dpy);
    __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
+   XID xid;
 
    if (pdraw != NULL) {
+      xid = pdraw->xDrawable;
       (*pdraw->destroyDrawable) (pdraw);
       __glxHashDelete(priv->drawHash, drawable);
       if (destroy_xdrawable)
-         XFreePixmap(pdraw->psc->dpy, pdraw->xDrawable);
+         XFreePixmap(priv->dpy, xid);
    }
 }