fix: lint

cmd/lotus-provider/migrate.go

@@ -134,7 +134,9 @@ func fromMiner(cctx *cli.Context) (err error) {
 	if err != nil {
 		return xerrors.Errorf("opening miner metadata datastore: %w", err)
 	}
-	defer mmeta.Close()
+	defer func() {
+		_ = mmeta.Close()
+	}()
 
 	maddrBytes, err := mmeta.Get(ctx, datastore.NewKey("miner-address"))
 	if err != nil {

provider/lpwinning/winning_task.go

@@ -486,9 +486,7 @@ func (mb MiningBase) baseTime() time.Time {
 }
 
 func (mb MiningBase) afterPropDelay() time.Time {
-	base := mb.baseTime()
-	base.Add(randTimeOffset(time.Second))
-	return base
+	return mb.baseTime().Add(randTimeOffset(time.Second))
 }
 
 func (t *WinPostTask) mineBasic(ctx context.Context) {

storage/sealer/mock/mock.go

@@ -478,7 +478,7 @@ func (mgr *SectorMgr) StageFakeData(mid abi.ActorID, spt abi.RegisteredSealProof
 	}
 
 	buf := make([]byte, usize)
-	_, _ = rand.Read(buf) // nolint:gosec
+	_, _ = rand.Read(buf) // nolint:gosec lint:ignore SA1019 we need predictable "randomness" here
 
 	id := storiface.SectorRef{
 		ID: abi.SectorID{