From c37238cae9b83aff0fc2413b3bb37f847c7949d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felf=C3=B6ldi=20Zsolt?= <zsfelfoldi@gmail.com>
Date: Thu, 20 Sep 2018 09:46:39 +0200
Subject: [PATCH] les: fix retriever logic (#17705)

---
 les/retrieve.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/les/retrieve.go b/les/retrieve.go
index 8ae36d82c..c3d788813 100644
--- a/les/retrieve.go
+++ b/les/retrieve.go
@@ -212,7 +212,7 @@ func (r *sentReq) stateRequesting() reqStateFn {
 				// no need to go to stopped state because waiting() already returned false
 				return nil
 			}
-		case rpSoftTimeout:
+		case rpSoftTimeout, rpDeliveredInvalid:
 			// last request timed out, try asking a new peer
 			go r.tryRequest()
 			r.lastReqQueued = true
@@ -242,7 +242,11 @@ func (r *sentReq) stateNoMorePeers() reqStateFn {
 			r.stop(nil)
 			return r.stateStopped
 		}
-		return r.stateNoMorePeers
+		if r.waiting() {
+			return r.stateNoMorePeers
+		}
+		r.stop(light.ErrNoPeers)
+		return nil
 	case <-r.stopCh:
 		return r.stateStopped
 	}