Bluetooth: Use list_head for HCI blacklist head

The bdaddr in the list root is completely unused and just
taking up space.

Signed-off-by: David S. Miller <davem@davemloft.net>
Tested-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8303f1c..c52f091 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -924,7 +924,7 @@
 
 	hci_conn_hash_init(hdev);
 
-	INIT_LIST_HEAD(&hdev->blacklist.list);
+	INIT_LIST_HEAD(&hdev->blacklist);
 
 	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));