[Qemu-devel] [PATCH RFC 3/3] qdev: Assert no new devices get created during realization

["Andreas Färber" <afaerber@suse.de>]

This is safe because current devices are already realized at this point
and busses are not devices.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 hw/core/qdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index ec621cd..e86e72d 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -33,6 +33,7 @@
 #include "qapi/qmp/qjson.h"
 #include "monitor/monitor.h"
 
+static bool devices_realizing;
 int qdev_hotplug = 0;
 static bool qdev_hot_added = false;
 static bool qdev_hot_removed = false;
@@ -354,7 +355,9 @@ void qdev_machine_creation_done(void)
 {
     Error *err = NULL;
 
+    devices_realizing = true;
     object_child_foreach(qdev_get_machine(), object_realize_one, &err);
+    devices_realizing = false;
     if (err != NULL) {
         qerror_report_err(err);
         error_free(err);
@@ -808,6 +811,8 @@ static void device_initfn(Object *obj)
     Property *prop;
     Error *err = NULL;
 
+    assert(!devices_realizing);
+
     if (qdev_hotplug) {
         dev->hotplugged = 1;
         qdev_hot_added = true;
-- 
1.8.1.4