staging: r8188eu: handle the non-ap case first

The OnDisassoc function hasn't got much to do if we're not working as an
access point. Move this case out of the large if statement to simplify the
code.

Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20221129205152.128172-5-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -1433,6 +1433,8 @@ static void OnDisassoc(struct adapter *padapter, struct recv_frame *precv_frame)
 	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
 	struct wifidirect_info *pwdinfo = &padapter->wdinfo;
+	struct sta_info *psta;
+	struct sta_priv *pstapriv = &padapter->stapriv;
 
 	if (memcmp(mgmt->bssid, get_my_bssid(&pmlmeinfo->network), ETH_ALEN))
 		return;
@@ -1444,29 +1446,25 @@ static void OnDisassoc(struct adapter *padapter, struct recv_frame *precv_frame)
 
 	reason = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
-	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
-		struct sta_info *psta;
-		struct sta_priv *pstapriv = &padapter->stapriv;
-
-		psta = rtw_get_stainfo(pstapriv, mgmt->sa);
-		if (psta) {
-			u8 updated = 0;
+	if (!check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
+		receive_disconnect(padapter, mgmt->bssid, reason);
+		pmlmepriv->LinkDetectInfo.bBusyTraffic = false;
+		return;
+	}
 
-			spin_lock_bh(&pstapriv->asoc_list_lock);
-			if (!list_empty(&psta->asoc_list)) {
-				list_del_init(&psta->asoc_list);
-				pstapriv->asoc_list_cnt--;
-				updated = ap_free_sta(padapter, psta, false, reason);
-			}
-			spin_unlock_bh(&pstapriv->asoc_list_lock);
+	psta = rtw_get_stainfo(pstapriv, mgmt->sa);
+	if (psta) {
+		u8 updated = 0;
 
-			associated_clients_update(padapter, updated);
+		spin_lock_bh(&pstapriv->asoc_list_lock);
+		if (!list_empty(&psta->asoc_list)) {
+			list_del_init(&psta->asoc_list);
+			pstapriv->asoc_list_cnt--;
+			updated = ap_free_sta(padapter, psta, false, reason);
 		}
+		spin_unlock_bh(&pstapriv->asoc_list_lock);
 
-		return;
-	} else {
-		receive_disconnect(padapter, mgmt->bssid, reason);
-		pmlmepriv->LinkDetectInfo.bBusyTraffic = false;
+		associated_clients_update(padapter, updated);
 	}
 }