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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190823143249.8096-3-philmd@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.65]); Fri, 23 Aug 2019 15:14:12 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH v2 2/6] hw/arm: Use object_initialize_child for correct reference counting X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , Andrey Smirnov , Jason Wang , Alistair Francis , Jean-Christophe Dubois , Beniamino Galvani , Igor Mitsyanko , qemu-arm@nongnu.org, Peter Chubb , Antony Pavlov , "Edgar E. Iglesias" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/23/19 4:32 PM, Philippe Mathieu-Daud=C3=A9 wrote: > As explained in commit aff39be0ed97: >=20 > Both functions, object_initialize() and object_property_add_child() > increase the reference counter of the new object, so one of the > references has to be dropped afterwards to get the reference > counting right. Otherwise the child object will not be properly > cleaned up when the parent gets destroyed. > Thus let's use now object_initialize_child() instead to get the > reference counting here right. >=20 > Reviewed-by: Peter Maydell > Signed-off-by: Philippe Mathieu-Daud=C3=A9 > --- > hw/arm/mcimx7d-sabre.c | 9 ++++----- > hw/arm/mps2-tz.c | 15 +++++++-------- > hw/arm/musca.c | 9 +++++---- > 3 files changed, 16 insertions(+), 17 deletions(-) >=20 > diff --git a/hw/arm/mcimx7d-sabre.c b/hw/arm/mcimx7d-sabre.c > index 97b8bb788a..78b87c502f 100644 > --- a/hw/arm/mcimx7d-sabre.c > +++ b/hw/arm/mcimx7d-sabre.c > @@ -30,7 +30,6 @@ static void mcimx7d_sabre_init(MachineState *machine) > { > static struct arm_boot_info boot_info; > MCIMX7Sabre *s =3D g_new0(MCIMX7Sabre, 1); > - Object *soc; > int i; > =20 > if (machine->ram_size > FSL_IMX7_MMDC_SIZE) { > @@ -49,10 +48,10 @@ static void mcimx7d_sabre_init(MachineState *machin= e) > .nb_cpus =3D machine->smp.cpus, > }; > =20 > - object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX7); > - soc =3D OBJECT(&s->soc); > - object_property_add_child(OBJECT(machine), "soc", soc, &error_fata= l); > - object_property_set_bool(soc, true, "realized", &error_fatal); > + object_initialize_child(OBJECT(machine), "soc", > + &s->soc, sizeof(s->soc), > + TYPE_FSL_IMX7, &error_fatal, NULL); You could fit that into two instead of three lines. But it's just a cosmetic nit, so: Reviewed-by: Thomas Huth