hw/s390x/virtio-ccw: Consolidate calls to virtio_ccw_unrealize()

Currently, every virtio-ccw device explicitely sets its unrealize
function to virtio_ccw_unrealize() in its class_init function.
We can simplify this by using a common unrealize function, just like
it is already done for the realize functions.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1532521224-27235-2-git-send-email-thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>

hw/s390x/virtio-ccw.c

@@ -747,11 +747,16 @@ out_err:
     g_free(sch);
 }
 
-static void virtio_ccw_unrealize(VirtioCcwDevice *dev, Error **errp)
+static void virtio_ccw_device_unrealize(VirtioCcwDevice *dev, Error **errp)
 {
+    VirtIOCCWDeviceClass *dc = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
     CcwDevice *ccw_dev = CCW_DEVICE(dev);
     SubchDev *sch = ccw_dev->sch;
 
+    if (dc->unrealize) {
+        dc->unrealize(dev, errp);
+    }
+
     if (sch) {
         css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
         g_free(sch);
@@ -1346,7 +1351,6 @@ static void virtio_ccw_net_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_net_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_net_properties;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 }
@@ -1373,7 +1377,6 @@ static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_blk_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_blk_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }
@@ -1400,7 +1403,6 @@ static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_serial_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_serial_properties;
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
 }
@@ -1427,7 +1429,6 @@ static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_balloon_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_balloon_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 }
@@ -1454,7 +1455,6 @@ static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_scsi_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }
@@ -1480,7 +1480,6 @@ static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = vhost_ccw_scsi_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = vhost_ccw_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }
@@ -1516,7 +1515,6 @@ static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_rng_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_rng_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 }
@@ -1553,7 +1551,6 @@ static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_crypto_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_crypto_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 }
@@ -1590,7 +1587,6 @@ static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_gpu_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_gpu_properties;
     dc->hotpluggable = false;
     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
@@ -1618,7 +1614,6 @@ static void virtio_ccw_input_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = virtio_ccw_input_realize;
-    k->unrealize = virtio_ccw_unrealize;
     dc->props = virtio_ccw_input_properties;
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
 }
@@ -1700,9 +1695,8 @@ static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
 static void virtio_ccw_busdev_unrealize(DeviceState *dev, Error **errp)
 {
     VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
-    VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
 
-    _info->unrealize(_dev, errp);
+    virtio_ccw_device_unrealize(_dev, errp);
 }
 
 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
@@ -1798,7 +1792,6 @@ static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
-    k->unrealize = virtio_ccw_unrealize;
     k->realize = virtio_ccw_9p_realize;
     dc->props = virtio_ccw_9p_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
@@ -1844,7 +1837,6 @@ static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 
     k->realize = vhost_vsock_ccw_realize;
-    k->unrealize = virtio_ccw_unrealize;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     dc->props = vhost_vsock_ccw_properties;
 }