add gpio led uart

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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/net/netrom/nr_timer.c
..
..
@@ -121,6 +121,7 @@
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 		   is accepted() it isn't 'dead' so doesn't get removed. */
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 		if (sock_flag(sk, SOCK_DESTROY) ||
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 		    (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) {
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+			sock_hold(sk);
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 			bh_unlock_sock(sk);
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 			nr_destroy_socket(sk);
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 			goto out;