From: Eric Anholt <eric@anholt.net>
Date: Tue, 30 Jun 2009 01:48:27 +0000 (-0700)
Subject: i915: Fix assertion failure on remapping a non-BO-backed VBO.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c72261f2a886e1f53025c2cf4b38b33ccfd62857;p=mesa.git

i915: Fix assertion failure on remapping a non-BO-backed VBO.

Failure to set the obj->Pointer back to null tripped up the assertion.
Bug #22428.
(cherry picked from commit 57a06d3a48c9af1067ec05e3ad96c58f4b9b99be)
---

diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
index c31fe91ad62..2e6b77824df 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
@@ -265,7 +265,10 @@ intel_bufferobj_unmap(GLcontext * ctx,
    struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
 
    assert(intel_obj);
-   if (intel_obj->buffer != NULL) {
+   if (intel_obj->sys_buffer != NULL) {
+      assert(obj->Pointer);
+      obj->Pointer = NULL;
+   } else if (intel_obj->buffer != NULL) {
       assert(obj->Pointer);
       if (intel_obj->mapped_gtt) {
 	 drm_intel_gem_bo_unmap_gtt(intel_obj->buffer);