Currently when *obj is not a TYPE_DEVICE, qemu will abort. This patch just fixed it. When *obj is not a TYPE_DEVICE, just do not add it to hotpluggable device list.
This patch also fixed the following issue: 1, boot qemu using cli: $ /opt/qemu-git-arm/bin/qemu-system-x86_64 -monitor stdio -enable-kvm \ -device virtio-scsi-pci,id=scsi0 2, device_del scsi0 via hmp using tab key(first input device_del, then press "Tab" key). (qemu) device_del After step2, qemu will abort. (qemu) device_del hw/core/qdev.c:930:qdev_build_hotpluggable_device_list: Object 0x5555563a2460 is not an instance of type device Signed-off-by: Jun Li <junm...@gmail.com> Reviewed-by: Paolo Bonzini <pbonz...@redhat.com> --- v3: According to Andreas's suggestion, do some changes. As followings: 1, change the Subject to more meaningful. 2, use two "return 0" to return early avoid reindentation. And I have found in qcow2_grow_l1_table has also used two "return 0". So accept Andreas's suggestion. Thanks. v2: This version just do a little changes for the commit message. As following show: In v1, 1, boot qemu using cli: virtio-scsi-pci,id=scsi0 -enable-kvm In v2, 1, boot qemu using cli: $ /opt/qemu-git-arm/bin/qemu-system-x86_64 -monitor stdio -enable-kvm \ -device virtio-scsi-pci,id=scsi0 --- hw/core/qdev.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index b3d5196..7db3e13 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -927,7 +927,12 @@ void qdev_alias_all_properties(DeviceState *target, Object *source) int qdev_build_hotpluggable_device_list(Object *obj, void *opaque) { GSList **list = opaque; - DeviceState *dev = DEVICE(obj); + DeviceState *dev = (DeviceState *)object_dynamic_cast(OBJECT(obj), + "device"); + + if (dev == NULL) { + return 0; + } if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) { *list = g_slist_append(*list, dev); -- 1.9.3