lua: forward return codes from lua to ubus

Signed-off-by: Steven Barth <cyrus@openwrt.org>
Tested-by: Luka Perkov <luka@openwrt.org>

diff --git a/lua/ubus.c b/lua/ubus.c
index 0f2338c..92fb0a1 100644 (file)
--- a/lua/ubus.c
+++ b/lua/ubus.c
@@ -285,6 +285,7 @@ ubus_method_handler(struct ubus_context *ctx, struct ubus_object *obj,
                struct blob_attr *msg)
 {
        struct ubus_lua_object *o = container_of(obj, struct ubus_lua_object, o);
+       int rv = 0;
 
        lua_getglobal(state, "__ubus_cb");
        lua_rawgeti(state, -1, o->r);
@@ -298,11 +299,13 @@ ubus_method_handler(struct ubus_context *ctx, struct ubus_object *obj,
                        lua_pushnil(state);
                else
                        ubus_lua_parse_blob_array(state, blob_data(msg), blob_len(msg), true);
-               lua_call(state, 2, 0);
+               lua_call(state, 2, 1);
+               if (lua_isnumber(state, -1))
+                       rv = lua_tonumber(state, -1);
        } else
                lua_pop(state, 1);
 
-       return 0;
+       return rv;
 }
 
 static int lua_gettablelen(lua_State *L, int index)