Revert "net-sysfs: Fix memory leak in netdev_register_kobject"

This reverts commit 6b70fc9.

The reverted bugfix will cause another issue.
Reported by [email protected].
See https://syzkaller.appspot.com/x/log.txt?x=1737671b200000 for
details.

Signed-off-by: Wang Hai <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Wang Hai

net/core/net-sysfs.c

@@ -1747,20 +1747,16 @@ int netdev_register_kobject(struct net_device *ndev)
 
 	error = device_add(dev);
 	if (error)
-		goto error_put_device;
+		return error;
 
 	error = register_queue_kobjects(ndev);
-	if (error)
-		goto error_device_del;
+	if (error) {
+		device_del(dev);
+		return error;
+	}
 
 	pm_runtime_set_memalloc_noio(dev, true);
 
-	return 0;
-
-error_device_del:
-	device_del(dev);
-error_put_device:
-	put_device(dev);
 	return error;
 }