src/core/tcp.c

366        to make sure tcp_output doesn't fail.
369        for the return value of tcp_output for now. */
370     tcp_output(pcb);
820     tcp_output(pcb);
968     tcp_output(pcb);
1197           tcp_output(prev);
1263         tcp_output(pcb);
1291 /** Call tcp_output for all active pcbs that have TF_NAGLEMEMERR set */
1299       tcp_output(pcb);
1866     tcp_output(pcb);