From 3cf156df2b5561d52f3bdddf857fcc176e4134b5 Mon Sep 17 00:00:00 2001
From: Aapo Tahkola <aet@rasterburn.org>
Date: Tue, 1 Nov 2005 15:43:06 +0000
Subject: Fix segmentation fault in _tnl_ProgramCacheDestroy().

---
 src/mesa/tnl/t_context.c  | 16 +++++++++++++---
 src/mesa/tnl/t_vp_build.c | 10 ----------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/src/mesa/tnl/t_context.c b/src/mesa/tnl/t_context.c
index cda4cf2cbd..ded62aee59 100644
--- a/src/mesa/tnl/t_context.c
+++ b/src/mesa/tnl/t_context.c
@@ -87,10 +87,19 @@ _tnl_CreateContext( GLcontext *ctx )
    _tnl_array_init( ctx );
    _tnl_vtx_init( ctx );
 
-   if (ctx->_MaintainTnlProgram) 
+   if (ctx->_MaintainTnlProgram) {
+      tnl->vp_cache = MALLOC(sizeof(*tnl->vp_cache));
+      tnl->vp_cache->size = 5;
+      tnl->vp_cache->n_items = 0;
+      tnl->vp_cache->items = MALLOC(tnl->vp_cache->size *
+				sizeof(*tnl->vp_cache->items));
+      _mesa_memset(tnl->vp_cache->items, 0, tnl->vp_cache->size *
+				sizeof(*tnl->vp_cache->items));
+      
       _tnl_install_pipeline( ctx, _tnl_vp_pipeline );
-   else 
+   } else {
       _tnl_install_pipeline( ctx, _tnl_default_pipeline );
+   }
 
    /* Initialize the arrayelt helper
     */
@@ -135,7 +144,8 @@ _tnl_DestroyContext( GLcontext *ctx )
    _tnl_destroy_pipeline( ctx );
    _ae_destroy_context( ctx );
 
-   _tnl_ProgramCacheDestroy( ctx );
+   if (ctx->_MaintainTnlProgram)
+      _tnl_ProgramCacheDestroy( ctx );
 
    FREE(tnl);
    ctx->swtnl_context = NULL;
diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index 8e52e7125c..02e5a2aa1b 100644
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -1479,16 +1479,6 @@ void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx )
    key = make_state_key(ctx);
    hash = hash_key(key);
 
-   if (tnl->vp_cache == NULL) {
-      tnl->vp_cache = MALLOC(sizeof(*tnl->vp_cache));
-      tnl->vp_cache->size = 5;
-      tnl->vp_cache->n_items = 0;
-      tnl->vp_cache->items = MALLOC(tnl->vp_cache->size *
-				sizeof(*tnl->vp_cache->items));
-      _mesa_memset(tnl->vp_cache->items, 0, tnl->vp_cache->size *
-				sizeof(*tnl->vp_cache->items));
-   }
-
    /* Look for an already-prepared program for this state:
     */
    ctx->_TnlProgram = (struct vertex_program *)
-- 
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