diff --git a/[refs] b/[refs]
index c54806a40694..c62078a411a9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 183f732c3f3f307d5673e17b69de6894e1dd2918
+refs/heads/master: d9319560b86839506c2011346b1f2e61438a3c73
diff --git a/trunk/drivers/bluetooth/hci_ldisc.c b/trunk/drivers/bluetooth/hci_ldisc.c
index 720148294e64..3c6cabcb7d84 100644
--- a/trunk/drivers/bluetooth/hci_ldisc.c
+++ b/trunk/drivers/bluetooth/hci_ldisc.c
@@ -311,8 +311,10 @@ static void hci_uart_tty_close(struct tty_struct *tty)
 
 		if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
 			hu->proto->close(hu);
-			hci_unregister_dev(hdev);
-			hci_free_dev(hdev);
+			if (hdev) {
+				hci_unregister_dev(hdev);
+				hci_free_dev(hdev);
+			}
 		}
 	}
 }