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-rw-r--r--include/command.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/command.h b/include/command.h
index 04cd1e745cb..5b1577f3b47 100644
--- a/include/command.h
+++ b/include/command.h
@@ -67,7 +67,9 @@ extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *
*
* @cmdtp: Command which caused the error
* @err: Error code (0 if none, -ve for error, like -EIO)
- * @return 0 if there is not error, 1 (CMD_RET_FAILURE) if an error is found
+ * @return 0 (CMD_RET_SUCCESX) if there is not error,
+ * 1 (CMD_RET_FAILURE) if an error is found
+ * -1 (CMD_RET_USAGE) if 'usage' error is found
*/
int cmd_process_error(cmd_tbl_t *cmdtp, int err);