cmd/bootnode: fix timer leak (#27754)

9d744f0c · ucwong · GitHub · f404a2d0 · 9d744f0c
Unverified Commit 9d744f0c authored Aug 01, 2023 by ucwong Committed by GitHub Aug 01, 2023
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main.go cmd/bootnode/main.go +1 -0

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--- a/cmd/bootnode/main.go
+++ b/cmd/bootnode/main.go
@@ -197,6 +197,7 @@ func doPortMapping(natm nat.Interface, ln *enode.LocalNode, addr *net.UDPAddr) *
 	// Refresh the mapping periodically.
 	go func() {
 		refresh := time.NewTimer(mapTimeout)
+		defer refresh.Stop()
 		for range refresh.C {
 			addMapping()
 			refresh.Reset(mapTimeout)