diff --git a/[refs] b/[refs]
index 97abf94bc021..698c4e927f29 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4a9bef37e5cf2c73b61ecc9ead52cad2eb4a372b
+refs/heads/master: 4667a4a52ffc3789c45f46096cdffb053591a8e1
diff --git a/trunk/drivers/gpu/drm/i915/intel_overlay.c b/trunk/drivers/gpu/drm/i915/intel_overlay.c
index 2639591c72e9..1257dc3cb474 100644
--- a/trunk/drivers/gpu/drm/i915/intel_overlay.c
+++ b/trunk/drivers/gpu/drm/i915/intel_overlay.c
@@ -199,16 +199,11 @@ static struct overlay_registers *intel_overlay_map_regs_atomic(struct intel_over
 
 static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
 {
-	struct drm_device *dev = overlay->dev;
-        drm_i915_private_t *dev_priv = dev->dev_private;
-
 	if (OVERLAY_NONPHYSICAL(overlay->dev))
 		io_mapping_unmap_atomic(overlay->virt_addr);
 
 	overlay->virt_addr = NULL;
 
-	I915_READ(OVADD); /* flush wc cashes */
-
 	return;
 }