Phonet: allow multiple listen() and fix small race condition
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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b08cd667c4
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96241544ca
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@ -428,19 +428,19 @@ static int pn_socket_listen(struct socket *sock, int backlog)
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struct sock *sk = sock->sk;
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struct sock *sk = sock->sk;
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int err = 0;
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int err = 0;
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if (sock->state != SS_UNCONNECTED)
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return -EINVAL;
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if (pn_socket_autobind(sock))
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if (pn_socket_autobind(sock))
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return -ENOBUFS;
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return -ENOBUFS;
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lock_sock(sk);
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lock_sock(sk);
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if (sk->sk_state != TCP_CLOSE) {
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if (sock->state != SS_UNCONNECTED) {
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err = -EINVAL;
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err = -EINVAL;
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goto out;
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goto out;
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}
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}
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sk->sk_state = TCP_LISTEN;
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if (sk->sk_state != TCP_LISTEN) {
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sk->sk_ack_backlog = 0;
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sk->sk_state = TCP_LISTEN;
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sk->sk_ack_backlog = 0;
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}
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sk->sk_max_ack_backlog = backlog;
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sk->sk_max_ack_backlog = backlog;
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out:
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out:
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release_sock(sk);
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release_sock(sk);
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