sd-rtnl: types - fix check for unsupported type

Spotted by Thomas H.P. Andersen <phomes@gmail.com>

diff --git a/src/libsystemd/sd-rtnl/rtnl-types.c b/src/libsystemd/sd-rtnl/rtnl-types.c
index 40dee56e98a03386853485820e9038577a1a38cd..557dc59455c8e5e3af7f9e1394242aa34ddd0836 100644 (file)
--- a/src/libsystemd/sd-rtnl/rtnl-types.c
+++ b/src/libsystemd/sd-rtnl/rtnl-types.c
@@ -524,8 +524,7 @@ int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_sys
                 return -ENOTSUP;
 
         type_system = &type_system_union->type_systems[protocol];
-
-        if (!type_system)
+        if (type_system->max == 0)
                 return -ENOTSUP;
 
         *ret = type_system;