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qdev: Make qdev_realize() support bus-less devices

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So far, qdev_realize() supports only devices that plug into a bus:
argument @bus cannot be null.  Extend it to support bus-less devices,
too.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-55-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-06-10 07:32:43 +02:00
parent 1afec9e8ea
commit 510ef98dca
1 changed files with 6 additions and 3 deletions
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9
hw/core/qdev.c
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@ -408,7 +408,7 @@ void qdev_init_nofail(DeviceState *dev)
/*
* Realize @dev.
* @dev must not be plugged into a bus.
* Plug @dev into @bus. This takes a reference to @dev.
* If @bus, plug @dev into @bus. This takes a reference to @dev.
* If @dev has no QOM parent, make one up, taking another reference.
* On success, return true.
* On failure, store an error through @errp and return false.
@ -418,9 +418,12 @@ bool qdev_realize(DeviceState *dev, BusState *bus, Error **errp)
Error *err = NULL;
assert(!dev->realized && !dev->parent_bus);
assert(bus);
qdev_set_parent_bus(dev, bus);
if (bus) {
qdev_set_parent_bus(dev, bus);
} else {
assert(!DEVICE_GET_CLASS(dev)->bus_type);
}
object_property_set_bool(OBJECT(dev), true, "realized", &err);
if (err) {