[Qemu-devel] [PATCH 39/39] tpm: move add/del_subregion to realize/unrealize

[Paolo Bonzini <pbonzini@redhat.com>]

Only do init/destroy in instance_init/finalize.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/tpm/tpm_tis.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index d4d8152..303d778 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -881,24 +881,29 @@ static void tpm_tis_realizefn(DeviceState *dev, Error **errp)
     tis->bh = qemu_bh_new(tpm_tis_receive_bh, s);
 
     isa_init_irq(&s->busdev, &tis->irq, tis->irq_num);
+    memory_region_add_subregion(isa_address_space(&s->busdev), TPM_TIS_ADDR_BASE,
+                                &s->mmio);
+}
+
+static void tpm_tis_unrealizefn(DeviceState *dev, Error **errp)
+{
+    TPMState *s = TPM(dev);
+
+    memory_region_del_subregion(get_system_memory(), &s->mmio);
 }
 
 static void tpm_tis_initfn(Object *obj)
 {
-    ISADevice *dev = ISA_DEVICE(obj);
     TPMState *s = TPM(obj);
 
     memory_region_init_io(&s->mmio, &tpm_tis_memory_ops, s, "tpm-tis-mmio",
                           TPM_TIS_NUM_LOCALITIES << TPM_TIS_LOCALITY_SHIFT);
-    memory_region_add_subregion(isa_address_space(dev), TPM_TIS_ADDR_BASE,
-                                &s->mmio);
 }
 
 static void tpm_tis_uninitfn(Object *obj)
 {
     TPMState *s = TPM(obj);
 
-    memory_region_del_subregion(get_system_memory(), &s->mmio);
     memory_region_destroy(&s->mmio);
 }
 
@@ -907,6 +912,7 @@ static void tpm_tis_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = tpm_tis_realizefn;
+    dc->unrealize = tpm_tis_unrealizefn;
     dc->props = tpm_tis_properties;
     dc->reset = tpm_tis_reset;
     dc->vmsd  = &vmstate_tpm_tis;
-- 
1.8.1.4