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-rw-r--r--system/qdev-monitor.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c
index 4c09b38ffb..03ae610649 100644
--- a/system/qdev-monitor.c
+++ b/system/qdev-monitor.c
@@ -856,18 +856,9 @@ void hmp_info_qdm(Monitor *mon, const QDict *qdict)
 
 void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp)
 {
-    QemuOpts *opts;
     DeviceState *dev;
 
-    opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, errp);
-    if (!opts) {
-        return;
-    }
-    if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
-        qemu_opts_del(opts);
-        return;
-    }
-    dev = qdev_device_add(opts, errp);
+    dev = qdev_device_add_from_qdict(qdict, true, errp);
     if (!dev) {
         /*
          * Drain all pending RCU callbacks. This is done because
@@ -879,9 +870,6 @@ void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp)
          * to the user
          */
         drain_call_rcu();
-
-        qemu_opts_del(opts);
-        return;
     }
     object_unref(OBJECT(dev));
 }
@@ -1018,8 +1006,34 @@ void qmp_device_sync_config(const char *id, Error **errp)
 void hmp_device_add(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
+    QemuOpts *opts;
+    DeviceState *dev;
 
-    qmp_device_add((QDict *)qdict, NULL, &err);
+    opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &err);
+    if (!opts) {
+        goto out;
+    }
+    if (qdev_device_help(opts)) {
+        qemu_opts_del(opts);
+        return;
+    }
+    dev = qdev_device_add(opts, &err);
+    if (!dev) {
+        /*
+         * Drain all pending RCU callbacks. This is done because
+         * some bus related operations can delay a device removal
+         * (in this case this can happen if device is added and then
+         * removed due to a configuration error)
+         * to a RCU callback, but user might expect that this interface
+         * will finish its job completely once qmp command returns result
+         * to the user
+         */
+        drain_call_rcu();
+
+        qemu_opts_del(opts);
+    }
+    object_unref(dev);
+out:
     hmp_handle_error(mon, err);
 }