lua: fix stack leak in ubus method handling

Signed-off-by: Chen Bin <ewolfok@126.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/lua/ubus.c b/lua/ubus.c
index 2903e7b..86e34b7 100644 (file)
--- a/lua/ubus.c
+++ b/lua/ubus.c
@@ -302,8 +302,9 @@ ubus_method_handler(struct ubus_context *ctx, struct ubus_object *obj,
                lua_call(state, 2, 1);
                if (lua_isnumber(state, -1))
                        rv = lua_tonumber(state, -1);
-       } else
-               lua_pop(state, 1);
+       }
+
+       lua_pop(state, 1);
 
        return rv;
 }