Bluetooth: Don't distribute keys in case of Encryption Failure

SMP Keys should only be distributeed when encryption is successful.
Signed-off-by: Hemant Gupta <hemant.gupta@stericsson.com>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>

net/bluetooth/l2cap_core.c

@@ -4813,7 +4813,8 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 	BT_DBG("conn %p", conn);
 
 	if (hcon->type == LE_LINK) {
-		smp_distribute_keys(conn, 0);
+		if (!status && encrypt)
+			smp_distribute_keys(conn, 0);
 		cancel_delayed_work(&conn->security_timer);
 	}