libudev: monitor - export MAJOR/MINOR only if available

diff --git a/udev/lib/libudev-monitor.c b/udev/lib/libudev-monitor.c
index 382fbfac5ffbca49e1f704278672a7d81b21701c..d0f28849aa11bf126b1600e1e0744b06a893d66e 100644 (file)
--- a/udev/lib/libudev-monitor.c
+++ b/udev/lib/libudev-monitor.c
@@ -367,7 +367,8 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito
                udev_device_unref(udev_device);
                return NULL;
        }
-       udev_device_set_devnum(udev_device, makedev(maj, min));
+       if (maj > 0)
+               udev_device_set_devnum(udev_device, makedev(maj, min));
        udev_device_set_info_loaded(udev_device);
        return udev_device;
 }