[lwip-devel] [bug #25622] Lack of return code checks in tcp_listen_input can cause incoming connections to become blocked.

[Dave Wilson]

Follow-up Comment #3, bug #25622 (project lwip):

The change I proposed definitely fixes one real bug in tcp_listen_input and
verifiably cures an easy-to-reproduce problem for me. I've not looked in great
detail but it is possible that there is an additional failure mechanism that I
have never seen relating to retransmission of ACKs during connection
establishment but I suspect that is a separate issue from the one I
investigated here.

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