fix for stats being checked after they are nil

main.go

@@ -125,6 +125,7 @@ func (m UploadManager) isBWInRange(bw float64) bool {
 }
 
 func (m UploadManager) pingWorker() error {
+outerLoop:
 	for {
 		stats, err := doPing(conf.Host, conf.PPP, time.Second)
 		if err != nil {
@@ -141,19 +142,13 @@ func (m UploadManager) pingWorker() error {
 				return err
 			}
 
-			if stats == nil {
-				log.Warningf("ping to %s failed: %v", conf.Host, "no response")
-				time.Sleep(time.Duration(conf.Interval) * time.Minute)
-				continue
-			}
-
 			log.Infof("ping %s over threshold detected, starting extended pings...", stats.AvgRtt)
 			for stats.AvgRtt.Milliseconds() >= conf.ThrottlePingThreshold {
 				stats, err = doPing(conf.Host, conf.ConformationPPP, time.Second)
 				if err != nil {
 					log.Warningf("ping to %s failed: %v", conf.Host, err)
 					time.Sleep(time.Duration(conf.Interval) * time.Minute)
-					continue
+					continue outerLoop
 				}
 
 				if stats.AvgRtt.Milliseconds() >= conf.ThrottlePingThreshold {