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 <agraf@suse.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1367326936-28539-1-git-send-email-agraf@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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;