From ac720400e1730ff910d42442e4393044e7c132e0 Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Thu, 28 Jul 2011 11:36:26 +0530 Subject: [PATCH] virtio-balloon: Unregister savevm section on device unplug Migrating after unplugging a virtio-balloon device resulted in an error message on the destination: Unknown savevm section or instance '0000:00:04.0/virtio-balloon' 0 load of migration failed Fix this by unregistering the section on device unplug. Signed-off-by: Amit Shah Reviewed-by: Markus Armbruster Acked-by: Michael S. Tsirkin --- hw/virtio-balloon.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/virtio-balloon.c b/hw/virtio-balloon.c index 0ce00495e2..072a88a382 100644 --- a/hw/virtio-balloon.c +++ b/hw/virtio-balloon.c @@ -45,6 +45,7 @@ typedef struct VirtIOBalloon size_t stats_vq_offset; MonitorCompletion *stats_callback; void *stats_opaque_callback_data; + DeviceState *qdev; } VirtIOBalloon; static VirtIOBalloon *to_virtio_balloon(VirtIODevice *vdev) @@ -292,6 +293,7 @@ VirtIODevice *virtio_balloon_init(DeviceState *dev) reset_stats(s); + s->qdev = dev; register_savevm(dev, "virtio-balloon", -1, 1, virtio_balloon_save, virtio_balloon_load, s); @@ -300,5 +302,7 @@ VirtIODevice *virtio_balloon_init(DeviceState *dev) void virtio_balloon_exit(VirtIODevice *vdev) { + VirtIOBalloon *s = DO_UPCAST(VirtIOBalloon, vdev, vdev); + unregister_savevm(s->qdev, "virtio-balloon", s); virtio_cleanup(vdev); }