4421 	struct kvm_io_bus *new_bus, *bus;  in kvm_io_bus_register_dev()  local
4432 	new_bus = kmalloc(struct_size(bus, range, bus->dev_count + 1),  in kvm_io_bus_register_dev()
4434 	if (!new_bus)  in kvm_io_bus_register_dev()
4447 	memcpy(new_bus, bus, sizeof(*bus) + i * sizeof(struct kvm_io_range));  in kvm_io_bus_register_dev()
4448 	new_bus->dev_count++;  in kvm_io_bus_register_dev()
4449 	new_bus->range[i] = range;  in kvm_io_bus_register_dev()
4450 	memcpy(new_bus->range + i + 1, bus->range + i,  in kvm_io_bus_register_dev()
4452 	rcu_assign_pointer(kvm->buses[bus_idx], new_bus);  in kvm_io_bus_register_dev()
4464 	struct kvm_io_bus *new_bus, *bus;  in kvm_io_bus_unregister_dev()  local
4478 	new_bus = kmalloc(struct_size(bus, range, bus->dev_count - 1),  in kvm_io_bus_unregister_dev()
4480 	if (new_bus) {  in kvm_io_bus_unregister_dev()
4481 		memcpy(new_bus, bus, struct_size(bus, range, i));  in kvm_io_bus_unregister_dev()
4482 		new_bus->dev_count--;  in kvm_io_bus_unregister_dev()
4483 		memcpy(new_bus->range + i, bus->range + i + 1,  in kvm_io_bus_unregister_dev()
4484 				flex_array_size(new_bus, range, new_bus->dev_count - i));  in kvm_io_bus_unregister_dev()
4487 	rcu_assign_pointer(kvm->buses[bus_idx], new_bus);  in kvm_io_bus_unregister_dev()
4491 	if (!new_bus) {  in kvm_io_bus_unregister_dev()
4501 	return new_bus ? 0 : -ENOMEM;  in kvm_io_bus_unregister_dev()