From 3775dcd9c4ad9d7f19f2ff14989f5180aaba3d64 Mon Sep 17 00:00:00 2001
From: Tom Rini <trini@ti.com>
Date: Tue, 4 Mar 2014 15:52:35 -0500
Subject: [PATCH] cmd_nvedit: Make 'env import -c' require size parameter

When importing a checksummed area we need to be told how big the area in
question is so that we know that will match the size of the area which
the checksum is generated against.

Reported-by: Pierre AUBERT <p.aubert@staubli.com>
Signed-off-by: Tom Rini <trini@ti.com>
---
 common/cmd_nvedit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 5bcc324675..c53601cf74 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -1008,6 +1008,9 @@ static int do_env_import(cmd_tbl_t *cmdtp, int flag,
 
 	if (argc == 2) {
 		size = simple_strtoul(argv[1], NULL, 16);
+	} else if (argc == 1 && chk) {
+		puts("## Error: external checksum format must pass size\n");
+		return CMD_RET_FAILURE;
 	} else {
 		char *s = addr;
 
-- 
2.39.5