It seems to me when pub_cfg->grp0 + pub_cfg->grp1 != pub_cfg->pub_max is true, it should return -EFAULT rather than 0. Otherwise, the function doesn't need to exist. Signed-off-by: Kevin Lo <kevlo@xxxxxxxxx> --- diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index 69384c43c046..afcd07ab1de7 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -560,7 +560,7 @@ static int hfc_pub_cfg_chk(struct rtw89_dev *rtwdev) const struct rtw89_hfc_pub_cfg *pub_cfg = ¶m->pub_cfg; if (pub_cfg->grp0 + pub_cfg->grp1 != pub_cfg->pub_max) - return 0; + return -EFAULT; return 0; }