static int overlay_merge()

in EmbeddedPkg/Library/FdtLib/fdt_overlay.c [665:695]

• 21 lines of code
• 5 McCabe index (conditional complexity)

static int overlay_merge(void *fdt, void *fdto)
{
	int fragment;

	fdt_for_each_subnode(fragment, fdto, 0) {
		int overlay;
		int target;
		int ret;

		/*
		 * Each fragments will have an __overlay__ node. If
		 * they don't, it's not supposed to be merged
		 */
		overlay = fdt_subnode_offset(fdto, fragment, "__overlay__");
		if (overlay == -FDT_ERR_NOTFOUND)
			continue;

		if (overlay < 0)
			return overlay;

		target = overlay_get_target(fdt, fdto, fragment, NULL);
		if (target < 0)
			return target;

		ret = overlay_apply_node(fdt, target, fdto, overlay);
		if (ret)
			return ret;
	}

	return 0;
}