Re: [PATCH v5 04/19] hw/intc/loongson_ipi: Extract loongson_ipi_common_finalize()

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

On 18/7/24 15:32, Philippe Mathieu-Daudé wrote:
> From: Bibo Mao <maobibo@loongson.cn>
> 
> In preparation to extract common IPI code in few commits,
> extract loongson_ipi_common_finalize().
> 
> Signed-off-by: Bibo Mao <maobibo@loongson.cn>
> [PMD: Extracted from bigger commit, added commit description]
> Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Bibo Mao <maobibo@loongson.cn>
> Tested-by: Bibo Mao <maobibo@loongson.cn>
> Acked-by: Song Gao <gaosong@loongson.cn>
> ---
>   hw/intc/loongson_ipi.c | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c
> index d870af39c1..960d1e604f 100644
> --- a/hw/intc/loongson_ipi.c
> +++ b/hw/intc/loongson_ipi.c
> @@ -357,13 +357,18 @@ static void loongson_ipi_class_init(ObjectClass *klass, void *data)
>       dc->vmsd = &vmstate_loongson_ipi;
>   }
>   
> -static void loongson_ipi_finalize(Object *obj)
> +static void loongson_ipi_common_finalize(Object *obj)
>   {
>       LoongsonIPIState *s = LOONGSON_IPI(obj);
>   
>       g_free(s->cpu);

Unfortunately the current code is bogus, @cpu is allocated in
loongson_ipi_realize(), a DeviceRealize handler, so must be
de-allocated in a DeviceUnrealize equivalent. Not at the instance
finalize cleanup which is too late because we could leak after
UNREALIZE -> REALIZE sequences.

>   }
>   
> +static void loongson_ipi_finalize(Object *obj)
> +{
> +    loongson_ipi_common_finalize(obj);
> +}
> +
>   static const TypeInfo loongson_ipi_types[] = {
>       {
>           .name               = TYPE_LOONGSON_IPI,