From 689249bcbe96e2655aac29569ba36554bee1c503 Mon Sep 17 00:00:00 2001
From: Vinson Lee <vlee@vmware.com>
Date: Sat, 27 Feb 2010 16:30:49 -0800
Subject: [PATCH] mga: Add assert to check for null pointer dereference.

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

diff --git a/src/mesa/drivers/dri/mga/mgatexmem.c b/src/mesa/drivers/dri/mga/mgatexmem.c
index 47be6f3..58afbbb 100644
--- a/src/mesa/drivers/dri/mga/mgatexmem.c
+++ b/src/mesa/drivers/dri/mga/mgatexmem.c
@@ -222,6 +222,7 @@ int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t )
 	 return -1;
       }
 
+      assert(t->base.memBlock);
       ofs = mmesa->mgaScreen->textureOffset[ heap ]
 	   + t->base.memBlock->ofs;
 
-- 
2.7.4