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consensus/ethash: remove unnecessary variable definition (#22512)

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jacksoom 2021-03-19 19:04:15 +08:00 committed by GitHub
parent 345890a558
commit d50e9d24be
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1 changed files with 1 additions and 2 deletions
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consensus/ethash/ethash.go
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@ -537,7 +537,6 @@ func NewShared() *Ethash {
// Close closes the exit channel to notify all backend threads exiting. // Close closes the exit channel to notify all backend threads exiting.
func (ethash *Ethash) Close() error { func (ethash *Ethash) Close() error {
var err error
ethash.closeOnce.Do(func() { ethash.closeOnce.Do(func() {
// Short circuit if the exit channel is not allocated. // Short circuit if the exit channel is not allocated.
if ethash.remote == nil { if ethash.remote == nil {
@ -546,7 +545,7 @@ func (ethash *Ethash) Close() error {
close(ethash.remote.requestExit) close(ethash.remote.requestExit)
<-ethash.remote.exitCh <-ethash.remote.exitCh
}) })
return err return nil
} }
// cache tries to retrieve a verification cache for the specified block number // cache tries to retrieve a verification cache for the specified block number