From 63d8a8417d68365cd10c11178516378411c09f87 Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Mon, 31 Mar 2008 17:02:47 +0800
Subject: mesa: Free all shader program data before deleting all shader/shader
 program objects to avoid memory access error.

---
 src/mesa/shader/shader_api.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/mesa/shader')

diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index df2f9dcec8..01a237c525 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -127,6 +127,8 @@ _mesa_free_shader_program_data(GLcontext *ctx,
    for (i = 0; i < shProg->NumShaders; i++) {
       _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL);
    }
+   shProg->NumShaders = 0;
+
    if (shProg->Shaders) {
       _mesa_free(shProg->Shaders);
       shProg->Shaders = NULL;
-- 
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