[Qemu-devel] [PATCH 1/2] qdev_monitor: Simplify error handling in qdev_device_add()

[Thomas Huth <thuth@redhat.com>]

Instead of doing the clean-ups on errors multiple times, introduce
a jump label at the end of the function that can be used by all
error paths that need this cleanup.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 qdev-monitor.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/qdev-monitor.c b/qdev-monitor.c
index 8fd6df9..cb2b109 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -620,22 +620,21 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
 
     /* set properties */
     if (qemu_opt_foreach(opts, set_property, dev, &err)) {
-        error_propagate(errp, err);
-        object_unparent(OBJECT(dev));
-        object_unref(OBJECT(dev));
-        return NULL;
+        goto err_del_dev;
     }
 
     dev->opts = opts;
     object_property_set_bool(OBJECT(dev), true, "realized", &err);
-    if (err != NULL) {
-        error_propagate(errp, err);
-        dev->opts = NULL;
-        object_unparent(OBJECT(dev));
-        object_unref(OBJECT(dev));
-        return NULL;
+    if (!err) {
+        return dev;
     }
-    return dev;
+    dev->opts = NULL;
+
+err_del_dev:
+    error_propagate(errp, err);
+    object_unparent(OBJECT(dev));
+    object_unref(OBJECT(dev));
+    return NULL;
 }
 
 
-- 
1.8.3.1