Hi Igor,

On Fri, Mar 6, 2020 at 11:49 AM Igor Mammedov <imamm...@redhat.com> wrote:

> On Fri, 6 Mar 2020 11:33:07 +0100
> Philippe Mathieu-Daudé <phi...@redhat.com> wrote:
>
> > On 3/3/20 10:12 AM, Igor Mammedov wrote:
> > > SOC object returned by object_new() is leaked in current code.
> > > Set SOC parent explicitly to board and then unref to SOC object
> > > to make sure that refererence returned by object_new() is taken
> > > care of.
> > >
> > > The SOC object will be kept alive by its parent (machine) and
> > > will be automatically freed when MachineState is destroyed.
> > >
> > > Signed-off-by: Igor Mammedov <imamm...@redhat.com>
> > > Reported-by: Andrew Jones <drjo...@redhat.com>
> > > ---
> > >   hw/arm/cubieboard.c | 7 ++++++-
> > >   1 file changed, 6 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
> > > index 089f9a30c1..12f8ac798d 100644
> > > --- a/hw/arm/cubieboard.c
> > > +++ b/hw/arm/cubieboard.c
> > > @@ -30,9 +30,14 @@ static struct arm_boot_info cubieboard_binfo = {
> > >
> > >   static void cubieboard_init(MachineState *machine)
> > >   {
> > > -    AwA10State *a10 = AW_A10(object_new(TYPE_AW_A10));
> > > +    AwA10State *a10;
> > >       Error *err = NULL;
> > >
> >
> > What about using object_new_with_props similarly to commit e4c81e3a451f?
> I prefer explicit object_property_add_child() and would use
> above only if there are list of properties to feed to it.
>
>
> >      a10 = AW_A10(object_new_with_props(TYPE_AW_A10, OBJECT(s), "soc",
> >                                         &err, NULL));
> >      if (err != NULL) {
> >          error_propagate(errp, err);
> >          return;
> >      }
> >
> > > +    a10 = AW_A10(object_new(TYPE_AW_A10));
> > > +    object_property_add_child(OBJECT(machine), "soc", OBJECT(a10),
> > > +                              &error_abort);
> > > +    object_unref(OBJECT(a10));
>

Thanks, I added this same solution to the Allwinner H3 series, and its
working fine there.

Tested-by: Niek Linnenbank <nieklinnenb...@gmail.com>


> > > +
> > >       object_property_set_int(OBJECT(&a10->emac), 1, "phy-addr", &err);
> > >       if (err != NULL) {
> > >           error_reportf_err(err, "Couldn't set phy address: ");
> > >
> >
>
>
>

-- 
Niek Linnenbank

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