staging: r8188eu: drop return value from issue_probereq_ex

The only caller of issue_probereq_ex does not check the return value. We
can remove it and make issue_probereq_ex a void function.

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/20221126154253.178275-2-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -4482,8 +4482,8 @@ inline void issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *ps
 	_issue_probereq(padapter, pssid, da, false);
 }
 
-int issue_probereq_ex(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da,
-	int try_cnt, int wait_ms)
+void issue_probereq_ex(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da,
+		       int try_cnt, int wait_ms)
 {
 	int ret;
 	int i = 0;
@@ -4497,13 +4497,6 @@ int issue_probereq_ex(struct adapter *padapter, struct ndis_802_11_ssid *pssid,
 			msleep(wait_ms);
 
 	} while ((i < try_cnt) && ((ret == _FAIL) || (wait_ms == 0)));
-
-	if (ret != _FAIL) {
-		ret = _SUCCESS;
-		goto exit;
-	}
-exit:
-	return ret;
 }
 
 /*  if psta == NULL, indicate we are station (client) now... */

drivers/staging/r8188eu/include/rtw_mlme_ext.h

@@ -512,8 +512,8 @@ void issue_auth(struct adapter *padapter, struct sta_info *psta,
 		unsigned short status);
 void issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid,
 		    u8 *da);
-s32 issue_probereq_ex(struct adapter *adapter, struct ndis_802_11_ssid *pssid,
-		      u8 *da, int try_cnt, int wait_ms);
+void issue_probereq_ex(struct adapter *adapter, struct ndis_802_11_ssid *pssid,
+		       u8 *da, int try_cnt, int wait_ms);
 int issue_nulldata(struct adapter *padapter, unsigned char *da,
 		   unsigned int power_mode, int try_cnt, int wait_ms);
 int issue_qos_nulldata(struct adapter *padapter, unsigned char *da,