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-rw-r--r--src/libsystemd/sd-rtnl/rtnl-types.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/libsystemd/sd-rtnl/rtnl-types.c b/src/libsystemd/sd-rtnl/rtnl-types.c
index 40dee56e98..557dc59455 100644
--- 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;