[PATCH] hw/core/qdev: Increase qdev_realize() kindness

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

Since commit 510ef98dca5, qdev_realize() aborts if bus-less
device is realized on a bus. Be kind with the developer by
displaying a hint about what is wrong.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/core/qdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 2131c7f951..dd3c90d37a 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -392,8 +392,11 @@ bool qdev_realize(DeviceState *dev, BusState *bus, Error **errp)
 
     if (bus) {
         qdev_set_parent_bus(dev, bus);
-    } else {
-        assert(!DEVICE_GET_CLASS(dev)->bus_type);
+    } else if (DEVICE_GET_CLASS(dev)->bus_type) {
+        error_report("%s: Unexpected bus '%s' for device '%s'",
+                     __func__, DEVICE_GET_CLASS(dev)->bus_type,
+                     object_get_typename(OBJECT(dev)));
+        abort();
     }
 
     object_property_set_bool(OBJECT(dev), true, "realized", &err);
-- 
2.21.3