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-rw-r--r--hw/core/qdev.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 2c7101d91d..655f5d5d5b 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -580,6 +580,12 @@ void qdev_pass_gpios(DeviceState *dev, DeviceState *container,
 BusState *qdev_get_child_bus(DeviceState *dev, const char *name)
 {
     BusState *bus;
+    Object *child = object_resolve_path_component(OBJECT(dev), name);
+
+    bus = (BusState *)object_dynamic_cast(child, TYPE_BUS);
+    if (bus) {
+        return bus;
+    }
 
     QLIST_FOREACH(bus, &dev->child_bus, sibling) {
         if (strcmp(name, bus->name) == 0) {
@@ -1206,7 +1212,6 @@ static void device_finalize(Object *obj)
     NamedGPIOList *ngl, *next;
 
     DeviceState *dev = DEVICE(obj);
-    qemu_opts_del(dev->opts);
 
     QLIST_FOREACH_SAFE(ngl, &dev->gpios, node, next) {
         QLIST_REMOVE(ngl, node);
@@ -1254,6 +1259,9 @@ static void device_unparent(Object *obj)
         qapi_event_send_device_deleted(!!dev->id, dev->id, path, &error_abort);
         g_free(path);
     }
+
+    qemu_opts_del(dev->opts);
+    dev->opts = NULL;
 }
 
 static void device_class_init(ObjectClass *class, void *data)