libs/cbi: properly handle uvl errors without childs

diff --git a/libs/cbi/luasrc/cbi.lua b/libs/cbi/luasrc/cbi.lua
index 4bed9b0..e7ad550 100644 (file)
--- a/libs/cbi/luasrc/cbi.lua
+++ b/libs/cbi/luasrc/cbi.lua
@@ -166,7 +166,7 @@ local function _uvl_validate_section(node, name)
 
        local function tag_section(e)
                local s = { }
-               for _, c in ipairs(e.childs) do
+               for _, c in ipairs(e.childs or { e }) do
                        if c.childs and not c:is(luci.uvl.errors.ERR_DEPENDENCY) then
                                table.insert( s, c.childs[1]:string() )
                        else