Bump to version 1.22.1

[platform/upstream/busybox.git] / miscutils / readahead.c

diff --git a/miscutils/readahead.c b/miscutils/readahead.c
index fb71ce8..e22aaa4 100644 (file)
--- a/miscutils/readahead.c
+++ b/miscutils/readahead.c
@@ -7,17 +7,24 @@
  *
  * Copyright (C) 2006  Michael Opdenacker <michael@free-electrons.com>
  *
- * Licensed under GPLv2 or later, see file License in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
+//usage:#define readahead_trivial_usage
+//usage:       "[FILE]..."
+//usage:#define readahead_full_usage "\n\n"
+//usage:       "Preload FILEs to RAM"
+
 #include "libbb.h"
 
 int readahead_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int readahead_main(int argc, char **argv)
+int readahead_main(int argc UNUSED_PARAM, char **argv)
 {
        int retval = EXIT_SUCCESS;
 
-       if (argc == 1) bb_show_usage();
+       if (!argv[1]) {
+               bb_show_usage();
+       }
 
        while (*++argv) {
                int fd = open_or_warn(*argv, O_RDONLY);