On Thu, 14 Sep 2017, Harsha Sharma wrote:

> Merge assignment with return statement to directly return the value.
> Done using following coccinelle semantic patch
>
> @@
> local idexpression ret;
> expression e;
> @@
>
> -ret =
> +return
>      e;
> -return ret;

Acked-by: Julia Lawall <julia.law...@lip6.fr>

Many of these examples have the property that ret is assigned to 0 but
that value is never used.  You could try using Coccinelle to see whether
that occurs in other cases.

julia


>
> Signed-off-by: Harsha Sharma <harshasharmai...@gmail.com>
> ---
>  drivers/staging/rtl8723bs/os_dep/ioctl_linux.c | 20 ++++----------------
>  1 file changed, 4 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c 
> b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> index ffbb35a..6a8f805 100644
> --- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> @@ -2123,12 +2123,9 @@ static int rtw_wx_set_gen_ie(struct net_device *dev,
>                            struct iw_request_info *info,
>                            union iwreq_data *wrqu, char *extra)
>  {
> -     int ret;
>       struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
>
> -     ret = rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
> -
> -     return ret;
> +     return rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
>  }
>
>  static int rtw_wx_set_auth(struct net_device *dev,
> @@ -3857,7 +3854,6 @@ static int rtw_hostapd_sta_flush(struct net_device *dev)
>  {
>       /* _irqL irqL; */
>       /* struct list_head     *phead, *plist; */
> -     int ret = 0;
>       /* struct sta_info *psta = NULL; */
>       struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
>       /* struct sta_priv *pstapriv = &padapter->stapriv; */
> @@ -3866,9 +3862,7 @@ static int rtw_hostapd_sta_flush(struct net_device *dev)
>
>       flush_all_cam_entry(padapter);  /* clear CAM */
>
> -     ret = rtw_sta_flush(padapter);
> -
> -     return ret;
> +     return rtw_sta_flush(padapter);
>
>  }
>
> @@ -4266,7 +4260,6 @@ 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);
>
> @@ -4279,15 +4272,12 @@ static int rtw_ioctl_acl_remove_sta(struct net_device 
> *dev, struct ieee_param *p
>               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);
>
> @@ -4300,9 +4290,7 @@ static int rtw_ioctl_acl_add_sta(struct net_device 
> *dev, struct ieee_param *para
>               return -EINVAL;
>       }
>
> -     ret = rtw_acl_add_sta(padapter, param->sta_addr);
> -
> -     return ret;
> +     return rtw_acl_add_sta(padapter, param->sta_addr);
>
>  }
>
> --
> 1.9.1
>
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