hw/qdev: Factor qdev_hotunplug_allowed() out

Factor qdev_hotunplug_allowed() out of qdev_unplug().
Start checking the device is not blocked.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
[PMD: Split from bigger patch, part 2/6]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20250110091908.64454-3-philmd@linaro.org>

hw/core/qdev-hotplug.c

@@ -47,6 +47,11 @@ bool qdev_hotplug_allowed(DeviceState *dev, BusState *bus, Error **errp)
     return true;
 }
 
+bool qdev_hotunplug_allowed(DeviceState *dev, Error **errp)
+{
+    return !qdev_unplug_blocked(dev, errp);
+}
+
 HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev)
 {
     if (dev->parent_bus) {

include/hw/qdev-core.h

@@ -541,6 +541,7 @@ void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
 HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev);
 HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev);
 bool qdev_hotplug_allowed(DeviceState *dev, BusState *bus, Error **errp);
+bool qdev_hotunplug_allowed(DeviceState *dev, Error **errp);
 
 /**
  * qdev_get_hotplug_handler() - Get handler responsible for device wiring

system/qdev-monitor.c

@@ -909,7 +909,7 @@ void qdev_unplug(DeviceState *dev, Error **errp)
     HotplugHandlerClass *hdc;
     Error *local_err = NULL;
 
-    if (qdev_unplug_blocked(dev, errp)) {
+    if (!qdev_hotunplug_allowed(dev, errp)) {
         return;
     }