isa: Split off instance_init for ISADevice

Prepares for assigning IRQs before QOM realize.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1361010446-1427-1-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

hw/isa-bus.c

@@ -124,16 +124,21 @@ static int isa_qdev_init(DeviceState *qdev)
     ISADevice *dev = ISA_DEVICE(qdev);
     ISADeviceClass *klass = ISA_DEVICE_GET_CLASS(dev);
 
-    dev->isairq[0] = -1;
-    dev->isairq[1] = -1;
-
     if (klass->init) {
         return klass->init(dev);
     }
 
     return 0;
 }
 
+static void isa_device_init(Object *obj)
+{
+    ISADevice *dev = ISA_DEVICE(obj);
+
+    dev->isairq[0] = -1;
+    dev->isairq[1] = -1;
+}
+
 ISADevice *isa_create(ISABus *bus, const char *name)
 {
     DeviceState *dev;
@@ -233,6 +238,7 @@ static const TypeInfo isa_device_type_info = {
     .name = TYPE_ISA_DEVICE,
     .parent = TYPE_DEVICE,
     .instance_size = sizeof(ISADevice),
+    .instance_init = isa_device_init,
     .abstract = true,
     .class_size = sizeof(ISADeviceClass),
     .class_init = isa_device_class_init,