tm: fixed condition in via_matching()

- introduced in previous commit

(cherry picked from commit 4bd1d70c2804ee2a1d29bd911275aa241577cfc1)
(cherry picked from commit 41bfcaab0d403d2290d353e9fa522af22b72e8f6)

src/modules/tm/t_lookup.c

@@ -264,11 +264,11 @@ static inline int via_matching( struct via_body *inv_via,
 				ack_via->host.len)!=0)
 		return 0;
 	if (inv_via->port!=ack_via->port) {
-		if(!(inv_via->port==0
-				&& (ack_via->port==SIP_PORT || ack_via->port==SIPS_PORT)))
+		if(inv_via->port==0
+				&& ack_via->port!=SIP_PORT && ack_via->port!=SIPS_PORT)
 			return 0;
-		if(!(ack_via->port==0
-				&& (inv_via->port==SIP_PORT || inv_via->port==SIPS_PORT)))
+		if(ack_via->port==0
+				&& inv_via->port!=SIP_PORT && inv_via->port!=SIPS_PORT)
 			return 0;
 	}
 	if (inv_via->transport.len!=ack_via->transport.len)
@@ -279,9 +279,9 @@ static inline int via_matching( struct via_body *inv_via,
 
 	if (inv_via->port!=ack_via->port
 			&& (inv_via->port==0 || ack_via->port==0)) {
-		/* test SIPS_PORT (5061) is used with TLS transport*/
+		/* test SIPS_PORT (5061) is used with TLS transport */
 		if(inv_via->port==SIPS_PORT || ack_via->port==SIPS_PORT) {
-			if(ack_via->transport.len!=3
+			if(inv_via->transport.len!=3
 					|| memcmp(inv_via->transport.s, "TLS", 3)!=0) {
 				return 0;
 			}