diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index e8184a15578a..7b96888974db 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -311,7 +311,8 @@ int arch_update_cpu_topology(void)
 	on_each_cpu(__arch_update_dedicated_flag, NULL, 0);
 	for_each_online_cpu(cpu) {
 		dev = get_cpu_device(cpu);
-		kobject_uevent(&dev->kobj, KOBJ_CHANGE);
+		if (dev)
+			kobject_uevent(&dev->kobj, KOBJ_CHANGE);
 	}
 	return rc;
 }