Index: linux-3.5-rc6/drivers/base/node.c
===================================================================
--- linux-3.5-rc6.orig/drivers/base/node.c	2012-07-18 18:24:29.191121066 +0900
+++ linux-3.5-rc6/drivers/base/node.c	2012-07-18 18:25:47.111146983 +0900
@@ -252,6 +252,12 @@ static inline void hugetlb_register_node
 static inline void hugetlb_unregister_node(struct node *node) {}
 #endif
 
+static void node_device_release(struct device *dev)
+{
+	struct node *node_dev = to_node(dev);
+
+	memset(node_dev, 0, sizeof(struct node));
+}
 
 /*
  * register_node - Setup a sysfs device for a node.
@@ -265,6 +271,7 @@ int register_node(struct node *node, int
 
 	node->dev.id = num;
 	node->dev.bus = &node_subsys;
+	node->dev.release = node_device_release;
 	error = device_register(&node->dev);
 
 	if (!error){