add nil check in tipset change handler

2020-08-12 14:27:39 -07:00 · 2020-08-12 14:27:39 -07:00 · 43e1b57c3f
commit 43e1b57c3f
parent c73d597d87
1 changed files with 5 additions and 0 deletions
--- a/markets/storageadapter/provider.go
+++ b/markets/storageadapter/provider.go
@ -379,6 +379,11 @@ func (n *ProviderNodeAdapter) OnDealExpiredOrSlashed(ctx context.Context, dealID

 	// Called immediately to check if the deal has already expired or been slashed
 	checkFunc := func(ts *types.TipSet) (done bool, more bool, err error) {
+		if ts == nil {
+			// keep listening for events
+			return false, true, nil
+		}
+
 		// Check if the deal has already expired
 		if sd.Proposal.EndEpoch <= ts.Height() {
 			onDealExpired(nil)