qdev: add children before qdev_init

We want the composition tree to to be in order by the time we call
qdev_init, so that a single set of the toplevel realize property can
propagate all the way down the composition tree.

This is not the case so far.  Unfortunately, this is incompatible
with calling qdev_init in the constructor wrappers for devices,
so for now we need to unattach some devices that are created through
those wrappers.  This will be fixed by removing qdev_init and instead
setting the toplevel realize property after machine init.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/hw/qdev-monitor.c b/hw/qdev-monitor.c
index 2e82962..031cb83 100644
--- a/hw/qdev-monitor.c
+++ b/hw/qdev-monitor.c
@@ -458,10 +458,6 @@ DeviceState *qdev_device_add(QemuOpts *opts)
         qdev_free(qdev);
         return NULL;
     }
-    if (qdev_init(qdev) < 0) {
-        qerror_report(QERR_DEVICE_INIT_FAILED, driver);
-        return NULL;
-    }
     if (qdev->id) {
         object_property_add_child(qdev_get_peripheral(), qdev->id,
                                   OBJECT(qdev), NULL);
@@ -472,6 +468,10 @@ DeviceState *qdev_device_add(QemuOpts *opts)
                                   OBJECT(qdev), NULL);
         g_free(name);
     }        
+    if (qdev_init(qdev) < 0) {
+        qerror_report(QERR_DEVICE_INIT_FAILED, driver);
+        return NULL;
+    }
     qdev->opts = opts;
     return qdev;
 }