staging: rtl8723bs: remove null test before kfree

kfree(..) on a NULL pointer is a no-op; the null test here is redundant.
Detected by coccicheck.
Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c

@@ -995,7 +995,6 @@ if (1) {
 		rtw_hal_set_hwreg(padapter, HW_VAR_EFUSE_USAGE, (u8 *)&efuse_usage);
 	}
 
-	if (efuseTbl)
 	kfree(efuseTbl);
 }
 
@@ -1128,7 +1127,6 @@ static void hal_ReadEFuse_BT(
 	}
 
 exit:
-	if (efuseTbl)
 	kfree(efuseTbl);
 }
 

drivers/staging/rtl8723bs/hal/sdio_ops.c

@@ -602,7 +602,6 @@ static s32 _sdio_local_read(
 	if (!err)
 		memcpy(pbuf, ptmpbuf, cnt);
 
-	if (ptmpbuf)
 	kfree(ptmpbuf);
 
 	return err;
@@ -646,7 +645,6 @@ s32 sdio_local_read(
 	if (!err)
 		memcpy(pbuf, ptmpbuf, cnt);
 
-	if (ptmpbuf)
 	kfree(ptmpbuf);
 
 	return err;

drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c

@@ -1170,10 +1170,7 @@ static int cfg80211_rtw_add_key(struct wiphy *wiphy, struct net_device *ndev,
 	}
 
 addkey_end:
-	if (param)
-	{
 	kfree((u8 *)param);
-	}
 
 	return ret;
 
@@ -1968,7 +1965,6 @@ static int rtw_cfg80211_set_wpa_ie(struct adapter *padapter, u8 *pie, size_t iel
 		pairwise_cipher, padapter->securitypriv.ndisencryptstatus, padapter->securitypriv.ndisauthtype));
 
 exit:
-	if (buf)
 	kfree(buf);
 	if (ret)
 		_clr_fwstate_(&padapter->mlmepriv, WIFI_UNDER_WPS);

drivers/staging/rtl8723bs/os_dep/ioctl_linux.c

@@ -766,9 +766,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 
 exit:
 
-	if (pwep) {
 	kfree((u8 *)pwep);
-	}
 	return ret;
 }
 
@@ -926,7 +924,7 @@ static int rtw_set_wpa_ie(struct adapter *padapter, char *pie, unsigned short ie
 
 exit:
 
-	if (buf) kfree(buf);
+	kfree(buf);
 
 	return ret;
 }
@@ -2502,10 +2500,7 @@ static int rtw_wx_set_enc_ext(struct net_device *dev,
 	ret =  wpa_set_encryption(dev, param, param_len);
 
 exit:
-	if (param)
-	{
 	kfree((u8 *)param);
-	}
 
 	return ret;
 }
@@ -4135,11 +4130,7 @@ static int rtw_set_encryption(struct net_device *dev, struct ieee_param *param,
 	}
 
 exit:
-
-	if (pwep)
-	{
 	kfree((u8 *)pwep);
-	}
 
 	return ret;
 
@@ -5785,11 +5776,8 @@ static int rtw_ioctl_wext_private(struct net_device *dev, union iwreq_data *wrq_
 	}
 
 exit:
-	if (input)
 	kfree(input);
-	if (buffer)
 	kfree(buffer);
-	if (output)
 	kfree(output);
 
 	return err;

drivers/staging/rtl8723bs/os_dep/xmit_linux.c

@@ -76,10 +76,8 @@ int rtw_os_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *pxmitb
 
 void rtw_os_xmit_resource_free(struct adapter *padapter, struct xmit_buf *pxmitbuf, u32 free_sz, u8 flag)
 {
-	if (free_sz > 0) {
-		if (pxmitbuf->pallocated_buf)
+	if (free_sz > 0)
 		kfree(pxmitbuf->pallocated_buf);
-	}
 }
 
 #define WMM_XMIT_THRESHOLD	(NR_XMITFRAME*2/5)