bt_sock_wait_state
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
EXPORT_SYMBOL(bt_sock_wait_state);
err = bt_sock_wait_state(sk, BT_CONNECTED,
err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
err = bt_sock_wait_state(sk, BT_CLOSED,
err = bt_sock_wait_state(sk, BT_CONNECTED,
err = bt_sock_wait_state(sk, BT_CONNECTED,
err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
err = bt_sock_wait_state(sk, BT_CLOSED,
err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
err = bt_sock_wait_state(sk, BT_CONNECTED,