driver core: node: use put_device() if device_register fail

if device_register() returned an error! Always use put_device()
to give up the reference initialized.
Signed-off-by: NArvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/node.c

@@ -315,7 +315,9 @@ static int register_node(struct node *node, int num)
 	node->dev.groups = node_dev_groups;
 	error = device_register(&node->dev);
 
-	if (!error){
+	if (error)
+		put_device(&node->dev);
+	else {
 		hugetlb_register_node(node);
 
 		compaction_register_node(node);