staging: rtl8192e: Decrease nesting of rtllib_rx_auth_resp()

Return from rtllib_rx_auth_resp() if auth_parse() fails.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_softmac.c

@@ -2322,7 +2322,18 @@ static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
 	bool bSupportNmode = true, bHalfSupportNmode = false;
 
 	errcode = auth_parse(skb, &challenge, &chlen);
-	if (0 == errcode) {
+
+	if (errcode) {
+		ieee->softmac_stats.rx_auth_rs_err++;
+		RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
+				  errcode);
+
+		netdev_info(ieee->dev,
+				"Authentication respose status code 0x%x", errcode);
+		rtllib_associate_abort(ieee);
+		return;
+	}
+
 	if (ieee->open_wep || !challenge) {
 		ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
 		ieee->softmac_stats.rx_auth_rs_ok++;
@@ -2364,16 +2375,6 @@ static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
 		rtllib_auth_challenge(ieee, challenge,
 				      chlen);
 	}
-	} else {
-		ieee->softmac_stats.rx_auth_rs_err++;
-		RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
-				  errcode);
-
-		netdev_info(ieee->dev,
-			    "Authentication respose status code 0x%x",
-			    errcode);
-		rtllib_associate_abort(ieee);
-	}
 }
 
 inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,