From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sun, 20 Sep 2009 20:29:47 +0000 (+0100)
Subject: drm/i915: BUG_ON page refleak during unbind
X-Git-Tag: firefly_0821_release~12332^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a32808c0a1244a52038bb94a3efcdd6a64a31a5b;p=firefly-linux-kernel-4.4.55.git

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 874cce62f51a..93b4232ee280 100644
--- 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);