From a5406444aeeef40c899a4159a1fae6d1501bc1cb Mon Sep 17 00:00:00 2001
From: Vinson Lee <vlee@vmware.com>
Date: Sat, 27 Feb 2010 16:28:30 -0800
Subject: r128: Add assert to check for null pointer dereference.

---
 src/mesa/drivers/dri/r128/r128_texmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/drivers/dri/r128/r128_texmem.c b/src/mesa/drivers/dri/r128/r128_texmem.c
index 5eec8c08cd6..412f6d42551 100644
--- a/src/mesa/drivers/dri/r128/r128_texmem.c
+++ b/src/mesa/drivers/dri/r128/r128_texmem.c
@@ -260,6 +260,7 @@ void r128UploadTexImages( r128ContextPtr rmesa, r128TexObjPtr t )
       }
 
       /* Set the base offset of the texture image */
+      assert(t->base.memBlock);
       t->bufAddr = rmesa->r128Screen->texOffset[heap] 
 	   + t->base.memBlock->ofs;
 
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