fix packet_cache_get_next_available_framecnt returning old packets.

git-svn-id: svn+ssh://jackaudio.org/trunk/jack@3710 0c269be4-1314-0410-8aa9-9f06e86f4224

drivers/netjack/netjack_packet.c

@@ -714,6 +714,9 @@ packet_cache_get_next_available_framecnt( packet_cache *pcache, jack_nframes_t e
 	    continue;
 	}
 
+	if( cpack->framecnt < expected_framecnt )
+	    continue;
+
 	if( (cpack->framecnt - expected_framecnt) > best_offset ) {
 	    continue;
 	}