virtio-crypto: do delete ctrl_vq in virtio_crypto_device_unrealize

Similar to other virtio-deivces, ctrl_vq forgot to delete in virtio_crypto_device_unrealize, this patch fix it.
This device has aleardy maintained vq pointers. Thus, we use the new virtio_delete_queue function directly to do the cleanup.

The leak stack:
Direct leak of 10752 byte(s) in 3 object(s) allocated from:
    #0 0x7f4c024b1970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970)
    kata-containers#1 0x7f4c018be49d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d)
    kata-containers#2 0x55a2f8017279 in virtio_add_queue /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio.c:2333
    kata-containers#3 0x55a2f8057035 in virtio_crypto_device_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio-crypto.c:814
    kata-containers#4 0x55a2f8005d80 in virtio_device_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio.c:3531
    kata-containers#5 0x55a2f8497d1b in device_set_realized /mnt/sdb/qemu-new/qemu_test/qemu/hw/core/qdev.c:891
    kata-containers#6 0x55a2f8b48595 in property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:2238
    kata-containers#7 0x55a2f8b54fad in object_property_set_qobject /mnt/sdb/qemu-new/qemu_test/qemu/qom/qom-qobject.c:26
    kata-containers#8 0x55a2f8b4de2c in object_property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:1390
    kata-containers#9 0x55a2f80609c9 in virtio_crypto_pci_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio-crypto-pci.c:58

Reported-by: Euler Robot <[email protected]>
Signed-off-by: Pan Nengyuan <[email protected]>
Cc: "Gonglei (Arei)" <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

hw/virtio/virtio-crypto.c

@@ -831,12 +831,13 @@ static void virtio_crypto_device_unrealize(DeviceState *dev, Error **errp)
 
     max_queues = vcrypto->multiqueue ? vcrypto->max_queues : 1;
     for (i = 0; i < max_queues; i++) {
-        virtio_del_queue(vdev, i);
+        virtio_delete_queue(vcrypto->vqs[i].dataq);
         q = &vcrypto->vqs[i];
         qemu_bh_delete(q->dataq_bh);
     }
 
     g_free(vcrypto->vqs);
+    virtio_delete_queue(vcrypto->ctrl_vq);
 
     virtio_cleanup(vdev);
     cryptodev_backend_set_used(vcrypto->cryptodev, false);