ide: qdev: register ide bus unrealize function

we have an idebus unrealize function, but it was being
registered as the unrealize function for the IDE Device,
so it was not getting invoked on device teardown because
nothing is "unrealizing" the IDE devices themselves.

Suggested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1488449293-80280-2-git-send-email-liqiang6-s@360.cn
Signed-off-by: John Snow <jsnow@redhat.com>

diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 4383cd1..299e592 100644 (file)
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -31,7 +31,7 @@
 /* --------------------------------- */
 
 static char *idebus_get_fw_dev_path(DeviceState *dev);
-static void idebus_unrealize(DeviceState *qdev, Error **errp);
+static void idebus_unrealize(BusState *qdev, Error **errp);
 
 static Property ide_props[] = {
     DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
@@ -43,14 +43,15 @@ static void ide_bus_class_init(ObjectClass *klass, void *data)
     BusClass *k = BUS_CLASS(klass);
 
     k->get_fw_dev_path = idebus_get_fw_dev_path;
+    k->unrealize = idebus_unrealize;
 }
 
-static void idebus_unrealize(DeviceState *qdev, Error **errp)
+static void idebus_unrealize(BusState *bus, Error **errp)
 {
-    IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
+    IDEBus *ibus = IDE_BUS(bus);
 
-    if (bus->vmstate) {
-        qemu_del_vm_change_state_handler(bus->vmstate);
+    if (ibus->vmstate) {
+        qemu_del_vm_change_state_handler(ibus->vmstate);
     }
 }
 
@@ -370,7 +371,6 @@ static void ide_device_class_init(ObjectClass *klass, void *data)
     k->init = ide_qdev_init;
     set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
     k->bus_type = TYPE_IDE_BUS;
-    k->unrealize = idebus_unrealize;
     k->props = ide_props;
 }