Merge pull request #2521 from chunqizhi/wenchu02

Fix bug when run windowPost

storage/wdpost_run.go

@@ -373,15 +373,15 @@ func (s *WindowPoStScheduler) runPost(ctx context.Context, di miner.DeadlineInfo
 			return nil, xerrors.Errorf("getting sorted sector info: %w", err)
 		}
 
+		if len(ssi) == 0 {
+			continue
+		}
+
 		sinfos = append(sinfos, ssi...)
 		for _, si := range ssi {
 			sidToPart[si.SectorNumber] = uint64(partIdx)
 		}
 
-		if len(ssi) == 0 {
-			log.Warn("attempted to run windowPost without any sectors...")
-			return nil, xerrors.Errorf("no sectors to run windowPost on")
-		}
 
 		params.Partitions[partIdx] = miner.PoStPartition{
 			Index:   uint64(partIdx),