In case irqchip_change_notifier isn't added, removing it triggers segfault.
Signed-off-by: Zhenzhong Duan <zhenzhong.d...@intel.com> --- hw/vfio/pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index c71b0955d81c..82c4cf4f7609 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3222,7 +3222,9 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) out_deregister: pci_device_set_intx_routing_notifier(&vdev->pdev, NULL); - kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier); + if (vdev->irqchip_change_notifier.notify) { + kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier); + } out_teardown: vfio_teardown_msi(vdev); vfio_bars_exit(vdev); -- 2.34.1