hw/m*: pass owner to memory_region_init* functions

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/misc/arm_l2x0.c b/hw/misc/arm_l2x0.c
index 954343f..3d6acee 100644
--- a/hw/misc/arm_l2x0.c
+++ b/hw/misc/arm_l2x0.c
@@ -157,7 +157,8 @@
 {
     l2x0_state *s = FROM_SYSBUS(l2x0_state, dev);
 
-    memory_region_init_io(&s->iomem, NULL, &l2x0_mem_ops, s, "l2x0_cc", 0x1000);
+    memory_region_init_io(&s->iomem, OBJECT(dev), &l2x0_mem_ops, s,
+                          "l2x0_cc", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
     return 0;
 }