hw/n*: pass owner to memory_region_init* functions

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/net/lance.c b/hw/net/lance.c
index 1d3999d..98bcdfc 100644
--- a/hw/net/lance.c
+++ b/hw/net/lance.c
@@ -117,7 +117,8 @@
     SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev);
     PCNetState *s = &d->state;
 
-    memory_region_init_io(&s->mmio, NULL, &lance_mem_ops, d, "lance-mmio", 4);
+    memory_region_init_io(&s->mmio, OBJECT(d), &lance_mem_ops, d,
+                          "lance-mmio", 4);
 
     qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1);