From 9b199f0476869a8ece108061a07268a0f1d99eb9 Mon Sep 17 00:00:00 2001
From: leviok <leviok@gmail.com>
Date: Tue, 29 Sep 2020 09:37:47 +0800
Subject: [PATCH] fix nil pointer

---
 node/impl/full/state.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/node/impl/full/state.go b/node/impl/full/state.go
index 5e01eaa5b..fc1c6914c 100644
--- a/node/impl/full/state.go
+++ b/node/impl/full/state.go
@@ -792,6 +792,8 @@ func (a *StateAPI) StateSectorPreCommitInfo(ctx context.Context, maddr address.A
 	pci, err := stmgr.PreCommitInfo(ctx, a.StateManager, maddr, n, ts)
 	if err != nil {
 		return miner.SectorPreCommitOnChainInfo{}, err
+	} else if pci == nil {
+		return miner.SectorPreCommitOnChainInfo{}, nil
 	}
 
 	return *pci, err