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From 8c40efb1aad9861f12b958002c5cfae1d91aeae5 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Thu, 23 Jan 2014 14:03:39 +0100
Subject: [PATCH 12/14] virtio-rng: switch exit callback to VirtioDeviceClass

RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <1390485820-7585-10-git-send-email-armbru@redhat.com>
Patchwork-id: 56928
O-Subject: [PATCH 7.0 qemu-kvm 09/10] virtio-rng: 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 7bb6edb0e3dd78d74e0ac980cf6c0a07307f61bf)

Conflicts:
	hw/virtio/virtio-rng.c

Trivially conflicts because we lack commit bc72ad6 "aio / timers:
Switch entire codebase to the new timer API".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/virtio/virtio-rng.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/virtio/virtio-rng.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index bac8421..6895146 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -184,16 +184,14 @@ static int virtio_rng_device_init(VirtIODevice *vdev)
     return 0;
 }
 
-static int virtio_rng_device_exit(DeviceState *qdev)
+static void virtio_rng_device_exit(VirtIODevice *vdev)
 {
-    VirtIORNG *vrng = VIRTIO_RNG(qdev);
-    VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
+    VirtIORNG *vrng = VIRTIO_RNG(vdev);
 
     qemu_del_timer(vrng->rate_limit_timer);
     qemu_free_timer(vrng->rate_limit_timer);
-    unregister_savevm(qdev, "virtio-rng", vrng);
+    unregister_savevm(DEVICE(vdev), "virtio-rng", vrng);
     virtio_cleanup(vdev);
-    return 0;
 }
 
 static Property virtio_rng_properties[] = {
@@ -205,10 +203,10 @@ static void virtio_rng_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
-    dc->exit = virtio_rng_device_exit;
     dc->props = virtio_rng_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     vdc->init = virtio_rng_device_init;
+    vdc->exit = virtio_rng_device_exit;
     vdc->get_features = get_features;
 }
 
-- 
1.7.1