int fdt_appendprop()

in EmbeddedPkg/Library/FdtLib/fdt_rw.c [305:330]

• 24 lines of code
• 4 McCabe index (conditional complexity)

int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
		   const void *val, int len)
{
	struct fdt_property *prop;
	int err, oldlen, newlen;

	FDT_RW_CHECK_HEADER(fdt);

	prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
	if (prop) {
		newlen = len + oldlen;
		err = _fdt_splice_struct(fdt, prop->data,
					 FDT_TAGALIGN(oldlen),
					 FDT_TAGALIGN(newlen));
		if (err)
			return err;
		prop->len = cpu_to_fdt32(newlen);
		memcpy(prop->data + oldlen, val, len);
	} else {
		err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);
		if (err)
			return err;
		memcpy(prop->data, val, len);
	}
	return 0;
}