[U-Boot] [RFC][PATCH v2 08/19] i2c: fix command usage help

[Heiko Schocher <hs@denx.de>]

Signed-off-by: Heiko Schocher <hs@denx.de>
---
- changes since v1
  added comment from Peter Tyser
  - simplified this patch as cmd_usage() returns 1

 common/cmd_i2c.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index a1a84a1..48de54b 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -1297,6 +1297,9 @@ 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++;
-- 
1.6.2.5

-- 
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