pci: Convert pci_nic_init() to Error to avoid qdev_init()

qdev_init() is deprecated, and will be removed when its callers have
been weaned off it.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/pci/pci.c

@@ -1613,9 +1613,11 @@ static const char * const pci_nic_names[] = {
 /* Initialize a PCI NIC.  */
 static PCIDevice *pci_nic_init(NICInfo *nd, PCIBus *rootbus,
                                const char *default_model,
-                               const char *default_devaddr)
+                               const char *default_devaddr,
+                               Error **errp)
 {
     const char *devaddr = nd->devaddr ? nd->devaddr : default_devaddr;
+    Error *err = NULL;
     PCIBus *bus;
     int devfn;
     PCIDevice *pci_dev;
@@ -1636,8 +1638,13 @@ static PCIDevice *pci_nic_init(NICInfo *nd, PCIBus *rootbus,
     pci_dev = pci_create(bus, devfn, pci_nic_names[i]);
     dev = &pci_dev->qdev;
     qdev_set_nic_properties(dev, nd);
-    if (qdev_init(dev) < 0)
+
+    object_property_set_bool(OBJECT(dev), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        object_unparent(OBJECT(dev));
         return NULL;
+    }
     return pci_dev;
 }
 
@@ -1645,14 +1652,17 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus,
                                const char *default_model,
                                const char *default_devaddr)
 {
+    Error *err = NULL;
     PCIDevice *res;
 
     if (qemu_show_nic_models(nd->model, pci_nic_models))
         exit(0);
 
-    res = pci_nic_init(nd, rootbus, default_model, default_devaddr);
-    if (!res)
+    res = pci_nic_init(nd, rootbus, default_model, default_devaddr, &err);
+    if (!res) {
+        error_report_err(err);
         exit(1);
+    }
     return res;
 }