Validate display list items

.github/workflows/esp32-build.yaml

@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: "atomvm/AtomVM"
-          ref: "release-0.6"
+          ref: "release-0.7"
 
       - name: Checkout repo
         uses: actions/checkout@v4

dcs_lcd_display_driver.c

@@ -139,21 +139,12 @@ static void display_init_using_list(struct DCSLCDDriver *driver, term init_list)
 
 static void do_update(Context *ctx, term display_list)
 {
-    int proper;
-    int len = term_list_length(display_list, &proper);
-
-    BaseDisplayItem *items = malloc(sizeof(BaseDisplayItem) * len);
-    if (UNLIKELY(!items)) {
-        fprintf(stderr, "do_update: failed to alloc items\n");
+    BaseDisplayItem *items;
+    size_t len;
+    if (UNLIKELY(display_items_new_list(display_list, &items, &len, ctx) != DisplayItemsOk)) {
         return;
     }
 
-    term t = display_list;
-    for (int i = 0; i < len; i++) {
-        display_items_init_item(&items[i], term_get_list_head(t), ctx);
-        t = term_get_list_tail(t);
-    }
-
     struct DCSLCDDriver *driver = DCS_LCD_DRIVER_FROM_CTX(ctx);
     int screen_width = driver->screen.w;
     int screen_height = driver->screen.h;