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qom: Demote already-has-a-parent to a regular error

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Rather than an abort(). This allows callers to decide whether parenting
an already-parented object is a fatal error condition.

Useful for providing a default value for an object's parent in the case
where you want to set one iff it doesn't already have one.

Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Crosthwaite 2014-09-25 22:19:52 -07:00 committed by Paolo Bonzini
parent d3c4931647
commit 8faa2f8571
1 changed files with 5 additions and 1 deletions
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6
qom/object.c
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@ -1089,6 +1089,11 @@ void object_property_add_child(Object *obj, const char *name,
gchar *type;
ObjectProperty *op;
if (child->parent != NULL) {
error_setg(errp, "child object is already parented");
return;
}
type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child)));
op = object_property_add(obj, name, type, object_get_child_property, NULL,
@ -1100,7 +1105,6 @@ void object_property_add_child(Object *obj, const char *name,
op->resolve = object_resolve_child_property;
object_ref(child);
g_assert(child->parent == NULL);
child->parent = obj;
out: