Check on dlsch0_harq to avoid segmentation fault

openair1/SCHED_NR_UE/fapi_nr_ue_l1.c

@@ -80,6 +80,7 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
           dlsch0->rnti = dl_config->dl_config_list[i].dlsch_config_pdu.rnti;
           //dlsch0->harq_processes[0]->mcs = &dlsch_config_pdu->mcs;
           dlsch0_harq = dlsch0->harq_processes[current_harq_pid];
+          if (dlsch0_harq != NULL){
             dlsch0_harq->BWPStart = dlsch_config_pdu->BWPStart;
             dlsch0_harq->BWPSize = dlsch_config_pdu->BWPSize;
             dlsch0_harq->nb_rb = dlsch_config_pdu->number_rbs;
@@ -100,6 +101,7 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
             LOG_D(MAC, ">>>> \tdlsch0->g_pucch = %d\tdlsch0_harq.mcs = %d\n", dlsch0->g_pucch, dlsch0_harq->mcs);
           }
         }
+      }
     } else {
       pdcch_vars->nb_search_space = 0;
     }