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 3fd8abc157f98f4f67326a90ceea5acbe6a77d25..52c5e7c30d755e6513f3f8445182cbd30709b1fd 100644 (file)
--- 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++;