[Qemu-devel] [PATCH RESEND 3/5] virtio-crypto-pci: add check for cryptodev object

[Gonglei]

We must assure each virtio crypto pci device has
an invaild cryptodev backend object.

Signed-off-by: Gonglei <address@hidden>
---
 hw/virtio/virtio-crypto-pci.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/virtio/virtio-crypto-pci.c b/hw/virtio/virtio-crypto-pci.c
index a1b0906..14bd12c 100644
--- a/hw/virtio/virtio-crypto-pci.c
+++ b/hw/virtio/virtio-crypto-pci.c
@@ -31,6 +31,11 @@ static void virtio_crypto_pci_realize(VirtIOPCIProxy 
*vpci_dev, Error **errp)
     VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev);
     DeviceState *vdev = DEVICE(&vcrypto->vdev);
 
+    if (vcrypto->vdev.conf.cryptodev == NULL) {
+        error_setg(errp, "'cryptodev' parameter expects a valid object");
+        return;
+    }
+
     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
     virtio_pci_force_virtio_1(vpci_dev);
     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-- 
1.8.3.1