[PATCH] cmd: return code when tlv_eeprom incorrectly called

[Heinrich Schuchardt]

A command called with incorrect parameters should set $? to 1 (false).
Instead of calling cmd_usage(cmdtp) and then returning 0 just return
CMD_RET_FAILURE.

Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>
---
 cmd/tlv_eeprom.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/cmd/tlv_eeprom.c b/cmd/tlv_eeprom.c
index bf8d453dc5..4591ff336b 100644
--- a/cmd/tlv_eeprom.c
+++ b/cmd/tlv_eeprom.c
@@ -479,17 +479,14 @@ int do_tlv_eeprom(struct cmd_tbl *cmdtp, int flag, int 
argc, char *const argv[])
                        show_tlv_devices();
                        break;
                default:
-                       cmd_usage(cmdtp);
-                       break;
+                       return CMD_RET_USAGE;
                }
                return 0;
        }
 
        // The set command takes one or two args.
-       if (argc > 4) {
-               cmd_usage(cmdtp);
-               return 0;
-       }
+       if (argc > 4)
+               return CMD_RET_USAGE;
 
        // Set command. If the TLV exists in the EEPROM, delete it. Then if
        // data was supplied for this TLV add the TLV with the new contents at
@@ -512,7 +509,7 @@ int do_tlv_eeprom(struct cmd_tbl *cmdtp, int flag, int 
argc, char *const argv[])
                current_dev = devnum;
                has_been_read = 0;
        } else {
-               cmd_usage(cmdtp);
+               return CMD_RET_USAGE;
        }
 
        return 0;
-- 
2.38.1