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s390x/pci: properly fail if the zPCI device cannot be created

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Right now, errors during realize()/pre_plug/plug of the zPCI device
would result in QEMU crashing instead of failing nicely when creating
a zPCI device for a PCI device.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181113121710.18490-1-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2018-11-13 13:17:10 +01:00 committed by Cornelia Huck
parent 6ff1446989
commit b6e67ecc7b
1 changed files with 19 additions and 6 deletions
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25
hw/s390x/s390-pci-bus.c
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@ -780,17 +780,31 @@ static void s390_pci_msix_free(S390PCIBusDevice *pbdev)
}
static S390PCIBusDevice *s390_pci_device_new(S390pciState *s,
const char *target)
const char *target, Error **errp)
{
DeviceState *dev = NULL;
Error *local_err = NULL;
DeviceState *dev;
dev = qdev_try_create(BUS(s->bus), TYPE_S390_PCI_DEVICE);
if (!dev) {
error_setg(errp, "zPCI device could not be created");
return NULL;
}
qdev_prop_set_string(dev, "target", target);
qdev_init_nofail(dev);
object_property_set_str(OBJECT(dev), target, "target", &local_err);
if (local_err) {
object_unparent(OBJECT(dev));
error_propagate_prepend(errp, local_err,
"zPCI device could not be created: ");
return NULL;
}
object_property_set_bool(OBJECT(dev), true, "realized", &local_err);
if (local_err) {
object_unparent(OBJECT(dev));
error_propagate_prepend(errp, local_err,
"zPCI device could not be created: ");
return NULL;
}
return S390_PCI_DEVICE(dev);
}
@ -865,9 +879,8 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev,
pbdev = s390_pci_find_dev_by_target(s, dev->id);
if (!pbdev) {
pbdev = s390_pci_device_new(s, dev->id);
pbdev = s390_pci_device_new(s, dev->id, errp);
if (!pbdev) {
error_setg(errp, "create zpci device failed");
return;
}
}