Lines Matching refs:NULL

97   struct tcp_pcb *lpcb_prev = NULL;
98   struct tcp_pcb_listen *lpcb_any = NULL;
167   prev = NULL;
170   for(pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) {
183       if (prev != NULL) {
194   if (pcb == NULL) {
197     for(pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) {
215     prev = NULL;
216     for(lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) {
239     if (lpcb == NULL) {
245     if (lpcb != NULL) {
249       if (prev != NULL) {
271   if (pcb != NULL) {
280     inseg.next = NULL;
285     recv_data = NULL;
293     if (pcb->refused_data != NULL) {
295         ((pcb->refused_data != NULL) && (tcplen > 0))) {
339         if (recv_data != NULL) {
340           LWIP_ASSERT("pcb->refused_data == NULL", pcb->refused_data == NULL);
363            function with a NULL buffer to indicate EOF. */
365           if (pcb->refused_data != NULL) {
381         tcp_input_pcb = NULL;
394     tcp_input_pcb = NULL;
395     recv_data = NULL;
398     if (inseg.p != NULL)
401       inseg.p = NULL;
470     if (npcb == NULL) {
661       if(pcb->unacked == NULL)
691         LWIP_ASSERT("pcb->accept != NULL", pcb->accept != NULL);
807     next = NULL;
1001                                     pcb->unacked != NULL?
1003                                     pcb->unacked != NULL?
1008       while (pcb->unacked != NULL &&
1031           LWIP_ASSERT("tcp_receive: valid queue length", pcb->unacked != NULL ||
1032                       pcb->unsent != NULL);
1038       if(pcb->unacked == NULL)
1055     while (pcb->unsent != NULL &&
1065       if (pcb->unsent == NULL) {
1080           pcb->unacked != NULL || pcb->unsent != NULL);
1174       LWIP_ASSERT("inseg.p != NULL", inseg.p);
1246         if (pcb->ooseq != NULL) {
1253             while (pcb->ooseq != NULL) {
1317           inseg.p = NULL;
1327         while (pcb->ooseq != NULL &&
1348             cseg->p = NULL;
1372         if (pcb->ooseq == NULL) {
1387           prev = NULL;
1388           for(next = pcb->ooseq; next != NULL; next = next->next) {
1399                 if (cseg != NULL) {
1400                   if (prev != NULL) {
1415               if (prev == NULL) {
1422                   if (cseg != NULL) {
1438                   if (cseg != NULL) {
1453               if (next->next == NULL &&
1460                 if (next->next != NULL) {
1496         prev = NULL;
1497         for(next = pcb->ooseq; next != NULL; prev = next, next = next->next) {
1505              if (prev == NULL) {
1507                pcb->ooseq = NULL;
1510                prev->next = NULL;