intel: fix the issue "VBO: Cannot allocate memory for a BO" on
965 after merging intel_context.c from i915 and i965. fix bug# 15152.
diff --git a/src/mesa/drivers/dri/i915/i830_vtbl.c b/src/mesa/drivers/dri/i915/i830_vtbl.c
index 1f4bc91..d1b07c5 100644
--- a/src/mesa/drivers/dri/i915/i830_vtbl.c
+++ b/src/mesa/drivers/dri/i915/i830_vtbl.c
@@ -666,6 +666,11 @@
    assert(!get_dirty(state));
 }
 
+static void
+i830_note_unlock( struct intel_context *intel )
+{
+    /* nothing */
+}
 
 void
 i830InitVtbl(struct i830_context *i830)
@@ -681,4 +686,5 @@
    i830->intel.vtbl.render_start = i830_render_start;
    i830->intel.vtbl.render_prevalidate = i830_render_prevalidate;
    i830->intel.vtbl.assert_not_dirty = i830_assert_not_dirty;
+   i830->intel.vtbl.note_unlock = i830_note_unlock; 
 }
diff --git a/src/mesa/drivers/dri/i915/i915_vtbl.c b/src/mesa/drivers/dri/i915/i915_vtbl.c
index 40c5de2..94d70be 100644
--- a/src/mesa/drivers/dri/i915/i915_vtbl.c
+++ b/src/mesa/drivers/dri/i915/i915_vtbl.c
@@ -572,6 +572,12 @@
    assert(!dirty);
 }
 
+static void
+i915_note_unlock( struct intel_context *intel )
+{
+    /* nothing */
+}
+
 
 void
 i915InitVtbl(struct i915_context *i915)
@@ -587,4 +593,5 @@
    i915->intel.vtbl.update_texture_state = i915UpdateTextureState;
    i915->intel.vtbl.flush_cmd = i915_flush_cmd;
    i915->intel.vtbl.assert_not_dirty = i915_assert_not_dirty;
+   i915->intel.vtbl.note_unlock = i915_note_unlock; 
 }
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 46c53ba..e2388db 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -993,6 +993,7 @@
  */
 void UNLOCK_HARDWARE( struct intel_context *intel )
 {
+   intel->vtbl.note_unlock( intel );
    intel->locked = 0;
 
    DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);