From: Heiko Schocher <hs@denx.de>
Date: Fri, 17 Sep 2010 11:10:35 +0000 (+0200)
Subject: i2c: fix command usage help
X-Git-Tag: v2010.12-rc1~174^2~53
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=4444b221f2682a3377eecfecdef66ddfa9355cf3;p=oweals%2Fu-boot.git

i2c: fix command usage help

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
---

diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index 1283c82afb..a7b65edd5f 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -1288,6 +1288,9 @@ static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	/* Strip off leading 'i2c' command argument */
 	argc--;
 	argv++;