File getdelays-nohang.patch of Package delayacct-utils

--- getdelays.c	2008/11/25 16:16:52	1.1
+++ getdelays.c	2008/11/25 16:21:55
@@ -392,6 +392,10 @@
 			goto err;
 		}
 	}
+	if (!maskset && !tid && !containerset) {
+		usage();
+		goto err;
+	}
 
 	do {
 		int i;