of: overlay: Make node skipping in init_overlay_changeset() clearer

Make it more clear that nodes without "__overlay__" subnodes are
skipped, by reverting the logic and using continue.
This also reduces indentation level.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>

drivers/of/overlay.c

@@ -573,18 +573,19 @@ static int init_overlay_changeset(struct overlay_changeset *ovcs,
 	cnt = 0;
 	for_each_child_of_node(tree, node) {
 		overlay_node = of_get_child_by_name(node, "__overlay__");
-		if (overlay_node) {
-			fragment = &fragments[cnt];
-			fragment->overlay = overlay_node;
-			fragment->target = find_target_node(node);
-			if (!fragment->target) {
-				of_node_put(fragment->overlay);
-				ret = -EINVAL;
-				goto err_free_fragments;
-			}
+		if (!overlay_node)
+			continue;
 
-			cnt++;
+		fragment = &fragments[cnt];
+		fragment->overlay = overlay_node;
+		fragment->target = find_target_node(node);
+		if (!fragment->target) {
+			of_node_put(fragment->overlay);
+			ret = -EINVAL;
+			goto err_free_fragments;
 		}
+
+		cnt++;
 	}
 
 	/*