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hw/intc/exynos4210_gic: Turn instance_init into realize function

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The instance_init function of the "exynos4210.gic" device creates a
new "arm_gic" device and immediately realizes it with qdev_init_nofail().
This will leave a lot of object in the QOM tree during introspection of
the "exynos4210.gic" device, e.g. reproducible by starting QEMU like this:

qemu-system-aarch64 -M none -nodefaults -nographic -monitor stdio

And then by running "info qom-tree" at the HMP monitor, followed by
"device_add exynos4210.gic,help" and finally checking "info qom-tree"
again.

Also note that qdev_init_nofail() can exit QEMU in case of errors - and
this must never happen during an instance_init function, otherwise QEMU
could terminate unexpectedly during introspection of a device.

Since most of the code that follows the qdev_init_nofail() depends on
the realized "gicbusdev", the easiest solution to the problem is to
turn the whole instance_init function into a realize function instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1532337784-334-1-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Thomas Huth 2018-07-23 15:21:27 +01:00 committed by Peter Maydell
parent 07bc425ea3
commit 1ddc9b98c3
1 changed files with 3 additions and 3 deletions
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6
hw/intc/exynos4210_gic.c
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@ -281,9 +281,9 @@ static void exynos4210_gic_set_irq(void *opaque, int irq, int level)
qemu_set_irq(qdev_get_gpio_in(s->gic, irq), level);
}
static void exynos4210_gic_init(Object *obj)
static void exynos4210_gic_realize(DeviceState *dev, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Object *obj = OBJECT(dev);
Exynos4210GicState *s = EXYNOS4210_GIC(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
const char cpu_prefix[] = "exynos4210-gic-alias_cpu";
@ -347,13 +347,13 @@ static void exynos4210_gic_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
dc->props = exynos4210_gic_properties;
dc->realize = exynos4210_gic_realize;
}
static const TypeInfo exynos4210_gic_info = {
.name = TYPE_EXYNOS4210_GIC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Exynos4210GicState),
.instance_init = exynos4210_gic_init,
.class_init = exynos4210_gic_class_init,
};