From 9cce63fa339fd9e57845fe7fd90b76c6b18f1790 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 4 Oct 2007 12:38:40 +0200
Subject: [PATCH] add argument checking for edit.c

---
 commands/edit.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/commands/edit.c b/commands/edit.c
index 9998d765c..ae2fb8c40 100644
--- a/commands/edit.c
+++ b/commands/edit.c
@@ -380,6 +380,11 @@ static int do_edit(cmd_tbl_t * cmdtp, int argc, char *argv[])
 	int linepos;
 	char c;
 
+	if (argc != 2) {
+		u_boot_cmd_usage(cmdtp);
+		return 1;
+	}
+
 	buffer = NULL;
 	if(edit_read_file(argv[1]))
 		return 1;