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armv7m_systick: delay timer_new to avoid memleaks 

There is a memory leak when we call 'device_list_properties' with typename = armv7m_systick. It's easy to reproduce as follow:

  virsh qemu-monitor-command vm1 --pretty '{"execute": "device-list-properties", "arguments": {"typename": "armv7m_systick"}}'

This patch delay timer_new to fix this memleaks.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-id: 20200205070659.22488-2-pannengyuan@huawei.com
Cc: qemu-arm@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Pan Nengyuan 2020-02-07 14:04:28 +00:00 committed by Peter Maydell
parent fa3236a970
commit f3a508eb4e
1 changed files with 6 additions and 0 deletions
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6
hw/timer/armv7m_systick.c
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@ -216,6 +216,11 @@ static void systick_instance_init(Object *obj)
memory_region_init_io(&s->iomem, obj, &systick_ops, s, "systick", 0xe0);
sysbus_init_mmio(sbd, &s->iomem);
sysbus_init_irq(sbd, &s->irq);
}
static void systick_realize(DeviceState *dev, Error **errp)
{
SysTickState *s = SYSTICK(dev);
s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, systick_timer_tick, s);
}
@ -238,6 +243,7 @@ static void systick_class_init(ObjectClass *klass, void *data)
dc->vmsd = &vmstate_systick;
dc->reset = systick_reset;
dc->realize = systick_realize;
}
static const TypeInfo armv7m_systick_info = {