Minor bug fixes for RMA redistributions

Codes/malleability/CommDist.c

@@ -375,7 +375,8 @@ void async_communication_end(MPI_Request *requests, size_t request_qty, MPI_Win
   //ha terminado, aunque solo se pueda llegar a este punto cuando ha terminado
   if(MAM_Contains_strat(MAM_RED_STRATEGIES, MAM_STRAT_RED_WAIT_TARGETS, NULL)) { MPI_Waitall(request_qty, requests, MPI_STATUSES_IGNORE); }
 
-  if(mall_conf->red_method == MALL_RED_RMA_LOCKALL || mall_conf->red_method == MALL_RED_RMA_LOCK) { MPI_Win_free(win); }
+  if((mall_conf->red_method == MALL_RED_RMA_LOCKALL || mall_conf->red_method == MALL_RED_RMA_LOCK) 
+		  && *win != MPI_WIN_NULL) { MPI_Win_free(win); }
 }
 
 /*

Codes/malleability/malleabilityTypes.c

@@ -145,6 +145,7 @@ void init_malleability_data_struct(malleability_data_t *data_struct, size_t size
 
   for(i=0; i<size; i++) { //calloc and memset does not ensure a NULL value
     data_struct->requests[i] = NULL;
+    data_struct->windows[i] = MPI_WIN_NULL;
     data_struct->arrays[i] = NULL;
   }
 }
@@ -176,6 +177,7 @@ void realloc_malleability_data_struct(malleability_data_t *data_struct, size_t q
 
   for(i=data_struct->max_entries; i<needed; i++) { //realloc does not ensure a NULL value
     requests_aux[i] = NULL;
+    windows_aux[i] = MPI_WIN_NULL;
     arrays_aux[i] = NULL;
   }