Re: [Qemu-devel] [PATCH 1/3] ide: qdev: register ide bus unrealize function

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

On 03/02/2017 07:08 AM, Li Qiang wrote:
> we have an idebus unrealize function, but it was being
> registered as the unrealize function for the IDE Device,
> so it was not getting invoked on device teardown because
> nothing is "unrealizing" the IDE devices themselves.

nice catch

>
> Suggested-by: John Snow <jsnow@redhat.com>
> Signed-off-by: Li Qiang <liqiang6-s@360.cn>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> ---
>  hw/ide/qdev.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
> index dbaa75c..fbf7aa5 100644
> --- a/hw/ide/qdev.c
> +++ b/hw/ide/qdev.c
> @@ -31,7 +31,7 @@
>  /* --------------------------------- */
>
>  static char *idebus_get_fw_dev_path(DeviceState *dev);
> -static void idebus_unrealize(DeviceState *qdev, Error **errp);
> +static void idebus_unrealize(BusState *qdev, Error **errp);
>
>  static Property ide_props[] = {
>      DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
> @@ -43,14 +43,15 @@ static void ide_bus_class_init(ObjectClass *klass, void *data)
>      BusClass *k = BUS_CLASS(klass);
>
>      k->get_fw_dev_path = idebus_get_fw_dev_path;
> +    k->unrealize = idebus_unrealize;
>  }
>
> -static void idebus_unrealize(DeviceState *qdev, Error **errp)
> +static void idebus_unrealize(BusState *bus, Error **errp)
>  {
> -    IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
> +    IDEBus *ibus = IDE_BUS(bus);

:)

>
> -    if (bus->vmstate) {
> -        qemu_del_vm_change_state_handler(bus->vmstate);
> +    if (ibus->vmstate) {
> +        qemu_del_vm_change_state_handler(ibus->vmstate);
>      }
>  }
>
> @@ -365,7 +366,6 @@ static void ide_device_class_init(ObjectClass *klass, void *data)
>      k->init = ide_qdev_init;
>      set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
>      k->bus_type = TYPE_IDE_BUS;
> -    k->unrealize = idebus_unrealize;
>      k->props = ide_props;
>  }
>
>