fix lint

go/logic/migrator.go

@@ -1157,7 +1157,7 @@ func (this *Migrator) initiateApplier() error {
 
 // iterateChunks iterates the existing table rows, and generates a copy task of
 // a chunk of rows onto the ghost table.
-func (this *Migrator) iterateChunks() error {
+func (this *Migrator) iterateChunks() {
  terminateRowIteration := func(err error) error {
  this.rowCopyComplete <- err
  return this.migrationContext.Log.Errore(err)
@@ -1166,13 +1166,13 @@ func (this *Migrator) iterateChunks() error {
  this.migrationContext.Log.Debugf("Noop operation; not really copying data")
  terminateRowIteration(nil)
  close(this.rowCopyComplete)
- return nil
+ return
  }
  if this.migrationContext.MigrationRangeMinValues == nil {
  this.migrationContext.Log.Debugf("No rows found in table. Rowcopy will be implicitly empty")
  terminateRowIteration(nil)
  close(this.rowCopyComplete)
- return nil
+ return
  }
 
  var hasNoFurtherRangeFlag int64
@@ -1183,7 +1183,7 @@ func (this *Migrator) iterateChunks() error {
  // Done
  // There's another such check down the line
  close(this.rowCopyComplete)
- return nil
+ return
  }
  copyRowsFunc := func() error {
  if atomic.LoadInt64(&this.rowCopyCompleteFlag) == 1 || atomic.LoadInt64(&hasNoFurtherRangeFlag) == 1 {