diff mbox

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

Message ID 1482376362-13804-4-git-send-email-arei.gonglei@huawei.com
State New
Headers show

Commit Message

Gonglei (Arei) Dec. 22, 2016, 3:12 a.m. UTC 
We must assure each virtio crypto pci device has
an invaild cryptodev backend object.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
---
 hw/virtio/virtio-crypto-pci.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

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);