Staging: rtl8723au: rtw_mlme_ext: Remove unnecessary test expression

Logical and-ing of a struct and its member should be replaced by the
member only as the struct has already been NULL tested before.
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_mlme_ext.c

@@ -1715,7 +1715,7 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 	spin_unlock_bh(&pstapriv->asoc_list_lock);
 
 	/*  now the station is qualified to join our BSS... */
-	if (pstat && pstat->state & WIFI_FW_ASSOC_SUCCESS &&
+	if (pstat->state & WIFI_FW_ASSOC_SUCCESS &&
 	    status == WLAN_STATUS_SUCCESS) {
 		/* 1 bss_cap_update & sta_info_update23a */
 		bss_cap_update_on_sta_join23a(padapter, pstat);