diff -urN udev-023-orig/udevinfo.c udev-023/udevinfo.c
--- udev-023-orig/udevinfo.c	2004-03-25 01:09:52.000000000 +0100
+++ udev-023/udevinfo.c	2004-03-26 01:16:13.122194272 +0100
@@ -133,7 +133,7 @@
 static int print_device_chain(const char *path)
 {
 	struct sysfs_class_device *class_dev;
-	struct sysfs_class_device *class_dev_parent;
+	struct sysfs_class_device *class_dev_basedev;
 	struct sysfs_attribute *attr;
 	struct sysfs_device *sysfs_dev;
 	struct sysfs_device *sysfs_dev_parent;
@@ -166,6 +166,10 @@
 			goto exit;
 		}
 		printf("device '%s' has major:minor %s", class_dev->path, attr->value);
+	} else {
+		printf("this is not a block or char device\n");
+		retval =-1;
+		goto exit;
 	}
 
 	/* open sysfs class device directory and print all attributes */
@@ -176,12 +180,11 @@
 		goto exit;
 	}
 
-	/* get the device link (if parent exists look here) */
-	class_dev_parent = sysfs_get_classdev_parent(class_dev);
-	if (class_dev_parent != NULL) 
-		sysfs_dev = sysfs_get_classdev_device(class_dev_parent);
-	else 
-		sysfs_dev = sysfs_get_classdev_device(class_dev);
+	/* if parent exists, use that instead */
+	class_dev_basedev = sysfs_get_classdev_parent(class_dev) ? : class_dev;
+
+	/* get the device link */
+	sysfs_dev = sysfs_get_classdev_device(class_dev_basedev);
 	
 	if (sysfs_dev != NULL)
 		printf("follow the class device's \"device\"\n");