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-rw-r--r--hw/virtio-blk.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 34913ee40e..f5e6ee90b6 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -36,6 +36,7 @@ typedef struct VirtIOBlock
VirtIOBlkConf *blk;
unsigned short sector_mask;
DeviceState *qdev;
+ VMChangeStateEntry *change;
#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
VirtIOBlockDataPlane *dataplane;
#endif
@@ -681,7 +682,7 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, VirtIOBlkConf *blk)
}
#endif
- qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s);
+ s->change = qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s);
s->qdev = dev;
register_savevm(dev, "virtio-blk", virtio_blk_id++, 2,
virtio_blk_save, virtio_blk_load, s);
@@ -702,6 +703,7 @@ void virtio_blk_exit(VirtIODevice *vdev)
virtio_blk_data_plane_destroy(s->dataplane);
s->dataplane = NULL;
#endif
+ qemu_del_vm_change_state_handler(s->change);
unregister_savevm(s->qdev, "virtio-blk", s);
blockdev_mark_auto_del(s->bs);
virtio_cleanup(vdev);