[lwip-devel] [bug #28562] Segfault @ err_tcp

[Simon Goldschmidt]

Follow-up Comment #8, bug #28562 (project lwip):

I think the cause rather might be 'conn->pcb.tcp = NULL;' in err_tcp(),
because the one in netconn_delete() is executed after do_delconn() (which in
turn executes netconn_drain()).

Anyway, I didn't think the pcb might be null here, which it can (due to
err_tcp), so I've included an if(!=NULL) around the calls, which should solve
the problem.

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