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-rw-r--r--common/cmd_i2c.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index 1283c82..a7b65ed 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++;