From: Vinson Lee <vlee@vmware.com>
Date: Sun, 21 Feb 2010 00:23:44 +0000 (-0800)
Subject: st/xlib: Add assert to check for null pointer dereference.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=71e3abc014cf8a1c18dcfd87517546a47ba41b6d;p=mesa.git

st/xlib: Add assert to check for null pointer dereference.
---

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c
index a274da0c62f..4aac08a1084 100644
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -1148,6 +1148,7 @@ void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height )
    if (!surf_front || !surf_back)
       return;
 
+   assert(pipe);
    pipe->surface_copy(pipe,
                       surf_front, x, y,  /* dest */
                       surf_back, x, y,   /* src */