linux-kernel - [PATCH v2] staging: r8188eu: change return type of rtw_set_802_11

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Date:   Thu,  3 Nov 2022 23:06:32 +0000
From:   Phillip Potter <phil@...lpotter.co.uk>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, paskripkin@...il.com,
        straube.linux@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: r8188eu: change return type of rtw_set_802_11_disassociate to void

Change return type of rtw_set_802_11_disassociate to void. This function
always returns 'true' no matter what, so there is no need to return a
value, and no need to check for it in the two call sites within
rtw_wx_set_mlme. Also, as we are no longer using ret in rtw_wx_set_mlme
except as the return value, just remove it and return 0 directly.

Suggested-by: Michael Straube <straube.linux@...il.com>
Signed-off-by: Phillip Potter <phil@...lpotter.co.uk>
---

Changes from V1: Act on feedback from Michael Straube:
* Remove ret variable from rtw_wx_set_mlme and return 0 directly in
  success case.

---
 drivers/staging/r8188eu/core/rtw_ioctl_set.c    | 4 +---
 drivers/staging/r8188eu/include/rtw_ioctl_set.h | 2 +-
 drivers/staging/r8188eu/os_dep/ioctl_linux.c    | 9 +++------
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ioctl_set.c b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
index 786431826659..785c0dba508f 100644
--- a/drivers/staging/r8188eu/core/rtw_ioctl_set.c
+++ b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
@@ -314,7 +314,7 @@ u8 rtw_set_802_11_infrastructure_mode(struct adapter *padapter,
 	return true;
 }
 
-u8 rtw_set_802_11_disassociate(struct adapter *padapter)
+void rtw_set_802_11_disassociate(struct adapter *padapter)
 {
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
@@ -328,8 +328,6 @@ u8 rtw_set_802_11_disassociate(struct adapter *padapter)
 	}
 
 	spin_unlock_bh(&pmlmepriv->lock);
-
-	return true;
 }
 
 u8 rtw_set_802_11_bssid_list_scan(struct adapter *padapter, struct ndis_802_11_ssid *pssid, int ssid_max_num)
diff --git a/drivers/staging/r8188eu/include/rtw_ioctl_set.h b/drivers/staging/r8188eu/include/rtw_ioctl_set.h
index abe460d6504d..c3eb2479f27b 100644
--- a/drivers/staging/r8188eu/include/rtw_ioctl_set.h
+++ b/drivers/staging/r8188eu/include/rtw_ioctl_set.h
@@ -12,7 +12,7 @@ u8 rtw_set_802_11_authentication_mode(struct adapter *adapt,
 				      enum ndis_802_11_auth_mode authmode);
 u8 rtw_set_802_11_bssid(struct adapter *adapter, u8 *bssid);
 u8 rtw_set_802_11_add_wep(struct adapter *adapter, struct ndis_802_11_wep *wep);
-u8 rtw_set_802_11_disassociate(struct adapter *adapter);
+void rtw_set_802_11_disassociate(struct adapter *adapter);
 u8 rtw_set_802_11_bssid_list_scan(struct adapter *adapter,
 				  struct ndis_802_11_ssid *pssid,
 				  int ssid_max_num);
diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index dda48a2a6d0c..8e9b7b0664bc 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -1011,7 +1011,6 @@ static int rtw_wx_set_mlme(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct iw_mlme *mlme = (struct iw_mlme *)extra;
 
@@ -1020,17 +1019,15 @@ static int rtw_wx_set_mlme(struct net_device *dev,
 
 	switch (mlme->cmd) {
 	case IW_MLME_DEAUTH:
-		if (!rtw_set_802_11_disassociate(padapter))
-			ret = -1;
+		rtw_set_802_11_disassociate(padapter);
 		break;
 	case IW_MLME_DISASSOC:
-		if (!rtw_set_802_11_disassociate(padapter))
-			ret = -1;
+		rtw_set_802_11_disassociate(padapter);
 		break;
 	default:
 		return -EOPNOTSUPP;
 	}
-	return ret;
+	return 0;
 }
 
 static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
-- 
2.38.1