drm/i915: Fix copy'n'pasteo that broke VT switch if flushing was non-empty.

Introduced in the "Avoid BUG_ONs on VT switch" commit.

Signed-off-by: Eric Anholt <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/i915/i915_gem.c

···
 	while (!list_empty(&dev_priv->mm.flushing_list)) {
 		struct drm_i915_gem_object *obj_priv;
 
-		obj_priv = list_first_entry(&dev_priv->mm.active_list,
+		obj_priv = list_first_entry(&dev_priv->mm.flushing_list,
 					    struct drm_i915_gem_object,
 					    list);
 		obj_priv->obj->write_domain &= ~I915_GEM_GPU_DOMAINS;