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virtio-serial: Cleanup on device hot-unplug

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Free malloc'ed memory, unregister from savevm and clean up virtio-common
bits on device hot-unplug.

This was found performing a migration after device hot-unplug.

Reported-by: <lihuang@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Amit Shah 2010-08-19 06:51:04 +05:30 • committed by Anthony Liguori
parent 583cd3cb93
commit 8b53a86577
3 changed files with 27 additions and 1 deletions
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17
hw/virtio-serial-bus.c
View file

@ -41,6 +41,8 @@ struct VirtIOSerial {
VirtIOSerialBus *bus;
DeviceState *qdev;
QTAILQ_HEAD(, VirtIOSerialPort) ports;
/* bitmap for identifying active ports */
@ -792,6 +794,8 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, uint32_t max_nr_ports)
vser->vdev.get_config = get_config;
vser->vdev.set_config = set_config;
vser->qdev = dev;
/*
* Register for the savevm section with the virtio-console name
* to preserve backward compat
@ -801,3 +805,16 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, uint32_t max_nr_ports)
return vdev;
}
void virtio_serial_exit(VirtIODevice *vdev)
{
VirtIOSerial *vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
unregister_savevm(vser->qdev, "virtio-console", vser);
qemu_free(vser->ivqs);
qemu_free(vser->ovqs);
qemu_free(vser->ports_map);
virtio_cleanup(vdev);
}