drm/i915: BUG_ON page refleak during unbind

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 874cce6..93b4232 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2004,6 +2004,7 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
        }
 
        i915_gem_object_put_pages(obj);
+       BUG_ON(obj_priv->pages_refcount);
 
        if (obj_priv->gtt_space) {
                atomic_dec(&dev->gtt_count);