When we try to cast an object to an unknown type, fail the cast. Today we would simply run into an assert().
This fixes a bug on qemu-system-s390x for me that gets triggered by the audio code looking for PCI and ISA buses. Signed-off-by: Alexander Graf <[email protected]> --- qom/object.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/qom/object.c b/qom/object.c index dd53d24..75e6aac 100644 --- a/qom/object.c +++ b/qom/object.c @@ -453,6 +453,11 @@ ObjectClass *object_class_dynamic_cast(ObjectClass *class, TypeImpl *type = class->type; ObjectClass *ret = NULL; + if (!target_type) { + /* target class type unknown, so fail the cast */ + return NULL; + } + if (type->class->interfaces && type_is_ancestor(target_type, type_interface)) { int found = 0; -- 1.6.0.2
