Damien George 42c0e440b9 extmod/modlwip: Fix bug when polling listening socket with backlog=1.
The bug polling for readability was: if alloc==0 and tcp.item==NULL then
the code would incorrectly check tcp.array[iget] which is an invalid
dereference when alloc==0.  This patch refactors the code to use a helper
function lwip_socket_incoming_array() to return the correct pointer for the
incomming connection array.

Fixes issue #4511.
2019-02-18 14:23:35 +11:00
..
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2017-07-18 11:57:39 +10:00
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