[PATCH] Staging : rtl8188eu : os_dep : Compression of lines for immediate return

From: Shraddha Barke <shraddha.6596@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>,
	Tapasweni Pathak <tapaswenipathak@gmail.com>,
	linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
	Jia He <hejianet@gmail.com>, Gulsah Kose <gulsah.1004@gmail.com>,
	Luca Ceresoli <luca@lucaceresoli.net>,
	Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
	Shraddha Barke <shraddha.6596@gmail.com>
Subject: [PATCH] Staging : rtl8188eu : os_dep : Compression of lines for immediate return
Date: Mon, 27 Jul 2015 19:07:57 +0530	[thread overview]
Message-ID: <1438004277-5802-1-git-send-email-shraddha.6596@gmail.com> (raw)

This patch compresses two lines into a single line if immediate return is 
found. Also remove variable ret as it is no longer needed.
Semantic patch used for this is as follows:

@@
type T;
identifier i,f;
constant C;
@@
- T i;
  ...when != i
     when strict
(
  return -C;
|
- i =
+ return
     f(...);
- return i;
)

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
---
 drivers/staging/rtl8188eu/os_dep/ioctl_linux.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index 38dba14..0ca3340 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -2485,16 +2485,13 @@ static int rtw_set_beacon(struct net_device *dev, struct ieee_param *param, int
 
 static int rtw_hostapd_sta_flush(struct net_device *dev)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 
 	DBG_88E("%s\n", __func__);
 
 	flush_all_cam_entry(padapter);	/* clear CAM */
 
-	ret = rtw_sta_flush(padapter);
-
-	return ret;
+	return rtw_sta_flush(padapter);
 }
 
 static int rtw_add_sta(struct net_device *dev, struct ieee_param *param)
@@ -2809,7 +2806,6 @@ static int rtw_set_hidden_ssid(struct net_device *dev, struct ieee_param *param,
 
 static int rtw_ioctl_acl_remove_sta(struct net_device *dev, struct ieee_param *param, int len)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 
@@ -2820,13 +2816,11 @@ static int rtw_ioctl_acl_remove_sta(struct net_device *dev, struct ieee_param *p
 	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
 	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff)
 		return -EINVAL;
-	ret = rtw_acl_remove_sta(padapter, param->sta_addr);
-	return ret;
+	return rtw_acl_remove_sta(padapter, param->sta_addr);
 }
 
 static int rtw_ioctl_acl_add_sta(struct net_device *dev, struct ieee_param *param, int len)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 
@@ -2837,8 +2831,7 @@ static int rtw_ioctl_acl_add_sta(struct net_device *dev, struct ieee_param *para
 	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
 	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff)
 		return -EINVAL;
-	ret = rtw_acl_add_sta(padapter, param->sta_addr);
-	return ret;
+	return rtw_acl_add_sta(padapter, param->sta_addr);
 }
 
 static int rtw_ioctl_set_macaddr_acl(struct net_device *dev, struct ieee_param *param, int len)
-- 
2.1.0

