From 70cbb6e02626608c95a74e74bdc51bbbf7fb570b Mon Sep 17 00:00:00 2001
From: Mike Frysinger
Date: Fri, 21 Apr 2006 22:04:05 +0000
Subject: Jason Schoon writes: Attached is a patch to display the usage message
 if fuser is called with no arguments, rather than doing no work and failing
 silently.

---
 procps/fuser.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/procps/fuser.c b/procps/fuser.c
index 850626e..35d77ed 100644
--- a/procps/fuser.c
+++ b/procps/fuser.c
@@ -326,6 +326,9 @@ int fuser_main(int argc, char **argv)
 	int killsig = SIGTERM;
 	int success = 1;
 
+	if (argc < 2)
+		bb_show_usage();
+
 	fni = xmalloc(sizeof(int));
 	for(i=1;i<argc;i++) {
 		optn = fuser_option(argv[i]);
-- 
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