From fed60f16a54ee6689b6c03025bbe4704a8e4b251 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Thu, 23 Jan 2014 14:03:36 +0100
Subject: [PATCH 09/14] virtio-net: switch exit callback to VirtioDeviceClass

RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <1390485820-7585-7-git-send-email-armbru@redhat.com>
Patchwork-id: 56926
O-Subject: [PATCH 7.0 qemu-kvm 06/10] virtio-net: switch exit callback to VirtioDeviceClass
Bugzilla: 983344
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>

From: Paolo Bonzini <pbonzini@redhat.com>

This ensures hot-unplug is handled properly by the proxy, and avoids
leaking bus_name which is freed by virtio_device_exit.

Cc: qemu-stable@nongnu.org
Acked-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 3786cff5eb384d058395a2729af627fa3253d056)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/net/virtio-net.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/net/virtio-net.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 21b126f..06c53fe 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1506,16 +1506,15 @@ static int virtio_net_device_init(VirtIODevice *vdev)
     return 0;
 }
 
-static int virtio_net_device_exit(DeviceState *qdev)
+static void virtio_net_device_exit(VirtIODevice *vdev)
 {
-    VirtIONet *n = VIRTIO_NET(qdev);
-    VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
+    VirtIONet *n = VIRTIO_NET(vdev);
     int i;
 
     /* This will stop vhost backend if appropriate. */
     virtio_net_set_status(vdev, 0);
 
-    unregister_savevm(qdev, "virtio-net", n);
+    unregister_savevm(DEVICE(vdev), "virtio-net", n);
 
     if (n->netclient_name) {
         g_free(n->netclient_name);
@@ -1546,8 +1545,6 @@ static int virtio_net_device_exit(DeviceState *qdev)
     g_free(n->vqs);
     qemu_del_nic(n->nic);
     virtio_cleanup(vdev);
-
-    return 0;
 }
 
 static void virtio_net_instance_init(Object *obj)
@@ -1574,10 +1571,10 @@ static void virtio_net_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
-    dc->exit = virtio_net_device_exit;
     dc->props = virtio_net_properties;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     vdc->init = virtio_net_device_init;
+    vdc->exit = virtio_net_device_exit;
     vdc->get_config = virtio_net_get_config;
     vdc->set_config = virtio_net_set_config;
     vdc->get_features = virtio_net_get_features;
-- 
1.7.1