libs/cbi: properly handle uvl errors without childs
libs/cbi: properly handle uvl errors without childs


8devices/luci,deepak78/luci,8devices/luci,deepak78/luci,deepak78/luci,8devices/luci,deepak78/luci,8devices/luci,8devices/luci,deepak78/luci,deepak78/luci,8devices/luci,deepak78/luci,deepak78/luci