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GEM: Fix oops on NULL dereference when we try clflushing when we don't need to.

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Eric Anholt 2008-05-08 12:46:02 -07:00
parent 9af4c49743
commit 2f573e6df4
1 changed files with 7 additions and 0 deletions
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7
linux-core/i915_gem.c
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@ -415,6 +415,13 @@ i915_gem_clflush_object (struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = obj->driver_private;
/* If we don't have a page list set up, then we're not pinned
* to GPU, and we can ignore the cache flush because it'll happen
* again at bind time.
*/
if (obj_priv->page_list == NULL)
return;
drm_ttm_cache_flush (obj_priv->page_list, obj->size / PAGE_SIZE);
}