return when encountering error

main.go

@@ -98,6 +98,7 @@ func parseFlags() CmdConfig {
 	flag.DurationVar(&config.ScaleTimeout, "scale-timeout", defaultScaleTimeout, "A timeout to wait for receivers to really start after they report healthy")
 	flag.BoolVar(&config.useAzAwareHashRing, "use-az-aware-hashring", false, "A boolean to use az aware hashring to comply with Thanos v0.32+")
 	flag.StringVar(&config.podAzAnnotationKey, "pod-az-annotation-key", "", "pod annotation key for AZ Info, If not specified or key not found, will use sts name as AZ key")
+
 	flag.Parse()
 
 	return config
@@ -580,7 +581,7 @@ func (c *controller) sync(ctx context.Context) {
 
 				if err := c.waitForPod(ctx, podName); err != nil {
 					level.Warn(c.logger).Log("msg", "failed polling until pod is ready", "pod", podName, "duration", time.Since(start), "err", err)
-					continue
+					return
 				}
 
 				level.Debug(c.logger).Log("msg", "waited until new pod was ready", "pod", podName, "duration", time.Since(start))