Re: [PATCH v7 2/7] spapr.c: handle dev->id in spapr_memory_unplug_rollback()

[Greg Kurz]

On Tue, 24 Aug 2021 21:48:30 -0300
Daniel Henrique Barboza <danielhb413@gmail.com> wrote:

> As done in hw/acpi/memory_hotplug.c, pass an empty string if dev->id
> is NULL to qapi_event_send_mem_unplug_error() to avoid relying on
> a behavior that can be changed in the future.
> 
> Suggested-by: Markus Armbruster <armbru@redhat.com>
> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  hw/ppc/spapr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 81699d4f8b..4f1ee90e9e 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -3690,7 +3690,7 @@ void spapr_memory_unplug_rollback(SpaprMachineState 
> *spapr, DeviceState *dev)
>       */
>      qapi_error = g_strdup_printf("Memory hotunplug rejected by the guest "
>                                   "for device %s", dev->id);
> -    qapi_event_send_mem_unplug_error(dev->id, qapi_error);
> +    qapi_event_send_mem_unplug_error(dev->id ? : "", qapi_error);
>  }
>  
>  /* Callback to be called during DRC release. */