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qdev: Assert devices are plugged into a bus that can take them 

This would have caught some of the bugs I just fixed.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20200609122339.937862-23-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-06-09 14:23:37 +02:00
parent d6b78ac8ec
commit 81cb05732e
1 changed files with 3 additions and 0 deletions
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3
hw/core/qdev.c
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@ -97,6 +97,9 @@ static void bus_add_child(BusState *bus, DeviceState *child)
void qdev_set_parent_bus(DeviceState *dev, BusState *bus) void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
{ {
BusState *old_parent_bus = dev->parent_bus; BusState *old_parent_bus = dev->parent_bus;
DeviceClass *dc = DEVICE_GET_CLASS(dev);
assert(dc->bus_type && object_dynamic_cast(OBJECT(bus), dc->bus_type));
if (old_parent_bus) { if (old_parent_bus) {
trace_qdev_update_parent_bus(dev, object_get_typename(OBJECT(dev)), trace_qdev_update_parent_bus(dev, object_get_typename(OBJECT(dev)),