Fix: memory leak occurs when memblock is exhausted.

(cherry picked from commit 0e550a32e46d797d03fd72e54e474762d4db7614)

# Conflicts:
#	openair2/LAYER2/RLC/rlc.c

openair2/LAYER2/RLC/AM_v9.3.0/rlc_am.c

@@ -509,6 +509,7 @@ rlc_am_rx (
 
   default:
     LOG_E(RLC, PROTOCOL_RLC_AM_CTXT_FMT" TX UNKNOWN PROTOCOL STATE 0x%02X\n", PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP, rlc), rlc->protocol_state);
+    list_free (&data_indP.data);
   }
 }
 

openair2/LAYER2/RLC/UM_v9.3.0/rlc_um.c

@@ -421,6 +421,7 @@ rlc_um_rx (const protocol_ctxt_t* const ctxt_pP, void *argP, struct mac_data_ind
     LOG_E(RLC, PROTOCOL_RLC_UM_CTXT_FMT" TX UNKNOWN PROTOCOL STATE %02X hex\n",
           PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p),
           l_rlc_p->protocol_state);
+    list_free (&data_indP.data);
   }
 }
 

openair2/LAYER2/RLC/rlc.c

@@ -441,6 +441,7 @@ rlc_op_status_t rlc_data_req     (const protocol_ctxt_t* const ctxt_pP,
         return RLC_OP_STATUS_OK;
       } else {
         VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RLC_DATA_REQ,VCD_FUNCTION_OUT);
+        free_mem_block(sdu_pP, __func__);
         return RLC_OP_STATUS_INTERNAL_ERROR;
       }
 
@@ -465,6 +466,7 @@ rlc_op_status_t rlc_data_req     (const protocol_ctxt_t* const ctxt_pP,
         return RLC_OP_STATUS_OK;
       } else {
         VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RLC_DATA_REQ,VCD_FUNCTION_OUT);
+        free_mem_block(sdu_pP, __func__);
         return RLC_OP_STATUS_INTERNAL_ERROR;
       }
 
@@ -487,6 +489,7 @@ rlc_op_status_t rlc_data_req     (const protocol_ctxt_t* const ctxt_pP,
       } else {
         //handle_event(ERROR,"FILE %s FONCTION rlc_data_req() LINE %s : out of memory\n", __FILE__, __LINE__);
         VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RLC_DATA_REQ,VCD_FUNCTION_OUT);
+        free_mem_block(sdu_pP, __func__);
         return RLC_OP_STATUS_INTERNAL_ERROR;
       }
 
@@ -521,6 +524,7 @@ rlc_op_status_t rlc_data_req     (const protocol_ctxt_t* const ctxt_pP,
           return RLC_OP_STATUS_OK;
         } else {
           VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RLC_DATA_REQ,VCD_FUNCTION_OUT);
+          free_mem_block(sdu_pP, __func__);
           return RLC_OP_STATUS_BAD_PARAMETER;
         }
       } else {

openair2/LAYER2/RLC/rlc_mac.c

@@ -299,6 +299,7 @@ void mac_rlc_data_ind     (
   switch (rlc_mode) {
   case RLC_MODE_NONE:
     //handle_event(WARNING,"FILE %s FONCTION mac_rlc_data_ind() LINE %s : no radio bearer configured :%d\n", __FILE__, __LINE__, channel_idP);
+    list_free (&data_ind.data);
     break;
 
   case RLC_MODE_AM: