drm/i915: pass dev_priv to i915_gem_cleanup_stolen

It really wants dev_priv anyway, also now matches i915_gem_init_stolen.

Signed-off-by: Matthew Auld <[e-mail]>
Cc: Joonas Lahtinen <[e-mail]>
Cc: Tvrtko Ursulin <[e-mail]>
Reviewed-by: Tvrtko Ursulin <[e-mail]>
Reviewed-by: Chris Wilson <[e-mail]>
Signed-off-by: Chris Wilson <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/i915_drv.h

···
 void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
 				 struct drm_mm_node *node);
 int i915_gem_init_stolen(struct drm_i915_private *dev_priv);
-void i915_gem_cleanup_stolen(struct drm_device *dev);
+void i915_gem_cleanup_stolen(struct drm_i915_private *dev_priv);
 struct drm_i915_gem_object *
 i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
 			      resource_size_t size);

drivers/gpu/drm/i915/i915_gem_gtt.c

···
 	arch_phys_wc_del(ggtt->mtrr);
 	io_mapping_fini(&ggtt->iomap);
 
-	i915_gem_cleanup_stolen(&dev_priv->drm);
+	i915_gem_cleanup_stolen(dev_priv);
 }
 
 static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)

drivers/gpu/drm/i915/i915_gem_stolen.c

···
 	return 0;
 }
 
-void i915_gem_cleanup_stolen(struct drm_device *dev)
+void i915_gem_cleanup_stolen(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
-
 	if (!drm_mm_initialized(&dev_priv->mm.stolen))
 		return;