From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Nov 2010 12:07:52 +0000 (+0100)
Subject: Common/cmd_nvedit: Check for env subcommand
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=5904da021449c6d2404485dc1379bf0f3b33414a;p=u-boot.git

Common/cmd_nvedit: Check for env subcommand

The env command needs one subcommand. If this is not available
print the usage help.

Signed-off-by: Thomas Weber <weber@corscience.de>
---

diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 3fd8abc157..52c5e7c30d 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -848,6 +848,9 @@ static int do_env (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *cp;
 
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	/* drop initial "env" arg */
 	argc--;
 	argv++;