diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 7e5e36315260..319d68c8a5df 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -396,6 +396,7 @@ static inline int is_utf8_continuation(unsigned char c)
 /**
  *	is_continuation		-	multibyte check
  *	@c: byte to check
+ *	@tty: terminal device
  *
  *	Returns true if the utf8 character 'c' is a multibyte continuation
  *	character and the terminal is in unicode mode.
@@ -1668,6 +1669,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
  *	@cp: input chars
  *	@fp: flags for each char (if NULL, all chars are TTY_NORMAL)
  *	@count: number of input chars in @cp
+ *	@flow: enable flow control
  *
  *	Called by the terminal driver when a block of characters has
  *	been received. This function must be called from soft contexts