--- udev-010/namedev.c.orig	2003-12-24 17:19:52.992734720 +0200
+++ udev-010/namedev.c	2003-12-24 17:41:57.469383664 +0200
@@ -402,6 +402,9 @@
 			dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
 			if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
 				continue;
+		/* for this CALLOUT we need a valid sysfs_device */
+		} else if ((dev->bus != NULL) || (strlen(dev->bus) != 0)) {
+			continue;
 		}
 
 		/* substitute anything that needs to be in the program name */