hmp: fix regression of HMP device_del auto-completion
The commits: - 6a1fa9f5 (monitor: add del completion for peripheral device) - 66e56b13 (qdev: add qdev_build_hotpluggable_device_list helper) cause a QEMU crash when trying to use HMP device_del auto-completion. It can be easily reproduced by: <qemu-bin> -enable-kvm ~/images/fedora.qcow2 -monitor stdio -device virtio-net-pci,id=vnet (qemu) device_del /home/mapfelba/git/upstream/qemu/hw/core/qdev.c:941:qdev_build_hotpluggable_device_list: Object 0x7f6ce04e4fe0 is not an instance of type device Aborted (core dumped) The root cause is qdev_build_hotpluggable_device_list going recursively over all peripherals and their children assuming all are devices. It doesn't work since PCI devices have at least on child which is a memory region (bus master). Solved by observing that all devices appear as direct children of /machine/peripheral container. No need of going recursively over all the children. Signed-off-by: NMarcel Apfelbaum <marcel.a@redhat.com> Reported-by: NGal Hammer <ghammer@redhat.com> Reviewed-by: NIgor Mammedov <imammedo@redhat.com> Message-id: 1417002601-20799-1-git-send-email-marcel.a@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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