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virtio-balloon: Check if balloon registration failed

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Multiple balloon registrations are not allowed; check if the
registration with the qemu balloon api succeeded.  If not, fail the
device init.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Amit Shah 2011-07-27 12:29:33 +05:30 • committed by Anthony Liguori
parent 6c6ec1821a
commit f76f665547
2 changed files with 11 additions and 1 deletions
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3
hw/virtio-pci.c
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@ -788,6 +788,9 @@ static int virtio_balloon_init_pci(PCIDevice *pci_dev)
VirtIODevice *vdev;
vdev = virtio_balloon_init(&pci_dev->qdev);
if (!vdev) {
return -1;
}
virtio_init_pci(proxy, vdev);
return 0;
}