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Re: [Qemu-devel] [PATCH] hw/arm/bcm283x: Fix crash with device_add bcm28

From: Eduardo Habkost
Subject: Re: [Qemu-devel] [PATCH] hw/arm/bcm283x: Fix crash with device_add bcm2837 on unsupported machines
Date: Wed, 11 Jul 2018 17:23:51 -0300
User-agent: Mutt/1.9.2 (2017-12-15)

On Wed, Jul 11, 2018 at 10:16:42PM +0200, Paolo Bonzini wrote:
> On 11/07/2018 20:30, Eduardo Habkost wrote:
> >> The theoretical behavior should be:
> > It's not clear below where you expect
> >   qdev_set_parent_bus(..., sysbus_get_default())
> > to be called (if it should be called at all).
> > 
> > I don't know where it should be called, but I'm absolutely sure
> > instance_init is not the right place.
> I think instance_init is fine to call qdev_set_parent_bus on contained
> devices.  Why do you say it's not?

Because object_unref(object_new(...)) is not supposed to affect
QEMU global state at all.


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