linux-kernel - [Patch v5] staging: rtl8723bs: core: rtw_ap: fix Unneeded variable: "ret". Return "0"

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Date:   Sat, 25 May 2019 00:11:05 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hariprasad Kelam <hariprasad.kelam@...il.com>,
        Nishka Dasgupta <nishka.dasgupta@...oo.com>,
        Kimberly Brown <kimbrownkd@...il.com>,
        Mamta Shukla <mamtashukla555@...il.com>,
        Murray McAllister <murray.mcallister@...omniasec.com>,
        Puranjay Mohan <puranjay12@...il.com>,
        Hardik Singh Rathore <hardiksingh.k@...il.com>,
        Omer Efrat <omer.efrat@...demg.com>,
        Quytelda Kahja <quytelda@...alin.org>,
        Larry Finger <Larry.Finger@...inger.net>,
        Arnd Bergmann <arnd@...db.de>,
        Jeeeun Evans <jeeeunevans@...il.com>,
        Michael Straube <straube.linux@...il.com>,
        Emanuel Bennici <benniciemanuel78@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [Patch v5] staging: rtl8723bs: core: rtw_ap: fix Unneeded variable:
 "ret". Return "0"

Function "rtw_sta_flush" always returns 0 value.
So change return type of rtw_sta_flush from int to void.

Same thing applies for rtw_hostapd_sta_flush

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
-----
Changes v2 -
       change return type of rtw_sta_flush
Changes v3 -
       fix indentaion issue
Changes v4 -
       prepare patch on linux-next
Changes v5 -
      cleanup subject and commit message
---
 drivers/staging/rtl8723bs/core/rtw_ap.c           | 7 ++-----
 drivers/staging/rtl8723bs/include/rtw_ap.h        | 2 +-
 drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 4 ++--
 drivers/staging/rtl8723bs/os_dep/ioctl_linux.c    | 7 +++----
 4 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_ap.c b/drivers/staging/rtl8723bs/core/rtw_ap.c
index 912ac2f..7bebb41 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ap.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ap.c
@@ -2189,10 +2189,9 @@ u8 ap_free_sta(
 	return beacon_updated;
 }
 
-int rtw_sta_flush(struct adapter *padapter)
+void rtw_sta_flush(struct adapter *padapter)
 {
 	struct list_head	*phead, *plist;
-	int ret = 0;
 	struct sta_info *psta = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
@@ -2202,7 +2201,7 @@ int rtw_sta_flush(struct adapter *padapter)
 	DBG_871X(FUNC_NDEV_FMT"\n", FUNC_NDEV_ARG(padapter->pnetdev));
 
 	if ((pmlmeinfo->state&0x03) != WIFI_FW_AP_STATE)
-		return ret;
+		return;
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
 	phead = &pstapriv->asoc_list;
@@ -2226,8 +2225,6 @@ int rtw_sta_flush(struct adapter *padapter)
 	issue_deauth(padapter, bc_addr, WLAN_REASON_DEAUTH_LEAVING);
 
 	associated_clients_update(padapter, true);
-
-	return ret;
 }
 
 /* called > TSR LEVEL for USB or SDIO Interface*/
diff --git a/drivers/staging/rtl8723bs/include/rtw_ap.h b/drivers/staging/rtl8723bs/include/rtw_ap.h
index fd56c9db..d6f3a3a 100644
--- a/drivers/staging/rtl8723bs/include/rtw_ap.h
+++ b/drivers/staging/rtl8723bs/include/rtw_ap.h
@@ -31,7 +31,7 @@ u8 bss_cap_update_on_sta_leave(struct adapter *padapter, struct sta_info *psta);
 void sta_info_update(struct adapter *padapter, struct sta_info *psta);
 void ap_sta_info_defer_update(struct adapter *padapter, struct sta_info *psta);
 u8 ap_free_sta(struct adapter *padapter, struct sta_info *psta, bool active, u16 reason);
-int rtw_sta_flush(struct adapter *padapter);
+void rtw_sta_flush(struct adapter *padapter);
 void start_ap_mode(struct adapter *padapter);
 void stop_ap_mode(struct adapter *padapter);
 
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 996bd1a..9bc6856 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -2870,9 +2870,9 @@ static int cfg80211_rtw_del_station(struct wiphy *wiphy, struct net_device *ndev
 
 		flush_all_cam_entry(padapter);	/* clear CAM */
 
-		ret = rtw_sta_flush(padapter);
+		rtw_sta_flush(padapter);
 
-		return ret;
+		return 0;
 	}
 
 
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index bfbbcf0..236a462 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -3753,7 +3753,7 @@ static int rtw_set_beacon(struct net_device *dev, struct ieee_param *param, int
 
 }
 
-static int rtw_hostapd_sta_flush(struct net_device *dev)
+static void rtw_hostapd_sta_flush(struct net_device *dev)
 {
 	/* _irqL irqL; */
 	/* struct list_head	*phead, *plist; */
@@ -3765,8 +3765,7 @@ static int rtw_hostapd_sta_flush(struct net_device *dev)
 
 	flush_all_cam_entry(padapter);	/* clear CAM */
 
-	return rtw_sta_flush(padapter);
-
+	rtw_sta_flush(padapter);
 }
 
 static int rtw_add_sta(struct net_device *dev, struct ieee_param *param)
@@ -4253,7 +4252,7 @@ static int rtw_hostapd_ioctl(struct net_device *dev, struct iw_point *p)
 	switch (param->cmd) {
 	case RTL871X_HOSTAPD_FLUSH:
 
-		ret = rtw_hostapd_sta_flush(dev);
+		rtw_hostapd_sta_flush(dev);
 
 		break;
 
-- 
2.7.4