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-rw-r--r--hw/s390x/s390-virtio-ccw.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 100dfdc96d..5796e24bd8 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -491,6 +491,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data)
mc->no_sdcard = 1;
mc->max_cpus = S390_MAX_CPUS;
mc->has_hotpluggable_cpus = true;
+ assert(!mc->get_hotplug_handler);
mc->get_hotplug_handler = s390_get_hotplug_handler;
mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;