staging: rtl8723bs: Skip unnecessary field checks

Skip unnecessary request field checks when the information element
pointer is null.

Signed-off-by: Aymen Qader <qader.aymen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_mlme_ext.c

@@ -1267,13 +1267,12 @@ unsigned int OnAssocReq(struct adapter *padapter, union recv_frame *precv_frame)
 	/*  checking SSID */
 	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + ie_offset, _SSID_IE_, &ie_len,
 		pkt_len - WLAN_HDR_A3_LEN - ie_offset);
-	if (p == NULL) {
-		status = _STATS_FAILURE_;
-	}
 
-	if (ie_len == 0) /*  broadcast ssid, however it is not allowed in assocreq */
+	if (!p || ie_len == 0) {
+		/*  broadcast ssid, however it is not allowed in assocreq */
 		status = _STATS_FAILURE_;
-	else {
+		goto OnAssocReqFail;
+	} else {
 		/*  check if ssid match */
 		if (memcmp((void *)(p+2), cur->Ssid.Ssid, cur->Ssid.SsidLength))
 			status = _STATS_FAILURE_;