p2p/discv5: fix topic register panic at shutdown (#15946)

This commit is contained in:
Felföldi Zsolt 2018-01-23 11:53:09 +01:00 committed by Péter Szilágyi
parent 302c17c36a
commit 397c6cde1e

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@ -350,7 +350,7 @@ func (s *ticketStore) nextFilteredTicket() (*ticketRef, time.Duration) {
regTime := now + mclock.AbsTime(wait)
topic := ticket.t.topics[ticket.idx]
if regTime >= s.tickets[topic].nextReg {
if s.tickets[topic] != nil && regTime >= s.tickets[topic].nextReg {
return ticket, wait
}
s.removeTicketRef(*ticket)