fix(table, chart): fix memory leaks

fixes #2967

demos/stress/lv_demo_stress.c

@@ -237,7 +237,6 @@ static void obj_test_task_cb(lv_timer_t * tmr)
             lv_anim_set_repeat_count(&a, 3);
             lv_anim_set_exec_cb(&a, arc_set_end_angle_anim);
             lv_anim_start(&a);
-            break;
 
             obj = lv_meter_create(main_page);
             lv_obj_scroll_to_view(obj, LV_ANIM_ON);
@@ -299,6 +298,12 @@ static void obj_test_task_cb(lv_timer_t * tmr)
             }
             auto_del(obj, TIME_STEP * 5 + 15);
 
+//            obj = lv_table_create(main_page);
+//            lv_table_set_cell_value(obj, 0, 0, "0,0");
+//            lv_table_set_cell_value_fmt(obj, 3, 0, "%d,%d", 5, 0);
+//            lv_table_set_row_cnt(obj, 5);
+//            lv_table_set_cell_value_fmt(obj, 1, 0, "%s", "1,0");
+//            lv_table_set_cell_value(obj, 1, 3, "1,3");
             break;
 
         case 19:

src/extra/widgets/chart/lv_chart.c

@@ -688,6 +688,14 @@ static void lv_chart_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
     }
     _lv_ll_clear(&chart->series_ll);
 
+    lv_chart_cursor_t * cur;
+    while(chart->cursor_ll.head) {
+        cur = _lv_ll_get_head(&chart->cursor_ll);
+        _lv_ll_remove(&chart->cursor_ll, cur);
+        lv_mem_free(cur);
+    }
+    _lv_ll_clear(&chart->cursor_ll);
+
     LV_TRACE_OBJ_CREATE("finished");
 }
 

src/widgets/lv_table.c

@@ -464,6 +464,7 @@ static void lv_table_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
 
     if(table->cell_data) lv_mem_free(table->cell_data);
     if(table->row_h) lv_mem_free(table->row_h);
+    if(table->col_w) lv_mem_free(table->col_w);
 }
 
 static void lv_table_event(const lv_obj_class_t * class_p, lv_event_t * e)