1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
index cc49400b4af8..7ea231172c85 100644
--- a/Documentation/accounting/getdelays.c
+++ b/Documentation/accounting/getdelays.c
@@ -392,6 +392,10 @@ int main(int argc, char *argv[])
                         goto err;
                 }
         }
+        if (!maskset && !tid && !containerset) {
+                usage();
+                goto err;
+        }
 
         do {
                 int i;