qemu/0332-qom-fix-refcount-of-non-heap-allocated-objects.patch

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From 3f7b149e9d80fee4274dfaf46eb7989420a9f046 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 23 Nov 2012 09:47:12 +0100
Subject: [PATCH] qom: fix refcount of non-heap-allocated objects
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The reference count for embedded objects is always one too low, because
object_initialize_with_type returns with zero references to the object.
This causes premature finalization of the object (or an assertion failure)
after calling object_ref to add an extra reference and object_unref to
remove it.
The fix is to move the initial object_ref call from object_new_with_type
to object_initialize_with_type.
Acked-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 764b63125a77dab54ed405d493452a4e05679c2e)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
qom/object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/qom/object.c b/qom/object.c
index f33e84d..5499318 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -307,6 +307,7 @@ void object_initialize_with_type(void *data, TypeImpl *type)
memset(obj, 0, type->instance_size);
obj->class = type->class;
+ object_ref(obj);
QTAILQ_INIT(&obj->properties);
object_init_with_type(obj, type);
}
@@ -395,7 +396,6 @@ Object *object_new_with_type(Type type)
obj = g_malloc(type->instance_size);
object_initialize_with_type(obj, type);
- object_ref(obj);
return obj;
}
--
1.8.0.2