staging: r8188eu: remove null pointer checks before kfree

kfree(NULL) is safe, so remove unnecessary null pointer checks before
calls to kfree. Reported by checkpatch.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210818085809.31451-1-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_ap.c

@@ -1314,8 +1314,7 @@ static void update_bcn_wps_ie(struct adapter *padapter)
 		pnetwork->IELength = wps_offset + (wps_ielen + 2) + remainder_ielen;
 	}
 
-	if (pbackup_remainder_ie)
-		kfree(pbackup_remainder_ie);
+	kfree(pbackup_remainder_ie);
 }
 
 static void update_bcn_p2p_ie(struct adapter *padapter)

drivers/staging/r8188eu/core/rtw_cmd.c

@@ -89,13 +89,9 @@ void rtw_free_evt_priv(struct	evt_priv *pevtpriv)
 
 void _rtw_free_cmd_priv(struct cmd_priv *pcmdpriv)
 {
-
 	if (pcmdpriv) {
-		if (pcmdpriv->cmd_allocated_buf)
-			kfree(pcmdpriv->cmd_allocated_buf);
-
-		if (pcmdpriv->rsp_allocated_buf)
-			kfree(pcmdpriv->rsp_allocated_buf);
+		kfree(pcmdpriv->cmd_allocated_buf);
+		kfree(pcmdpriv->rsp_allocated_buf);
 	}
 }
 
@@ -818,11 +814,8 @@ u8 rtw_joinbss_cmd(struct adapter  *padapter, struct wlan_network *pnetwork)
 
 	psecnetwork = (struct wlan_bssid_ex *)&psecuritypriv->sec_bss;
 	if (!psecnetwork) {
-		if (pcmd)
-			kfree(pcmd);
-
+		kfree(pcmd);
 		res = _FAIL;
-
 		goto exit;
 	}