1 files changed, 15 insertions, 10 deletions

diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 98c2deb4bf..97983cea5a 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -862,7 +862,6 @@ static RPCHelpMan gettxoutsetinfo()
 
     const CBlockIndex* pindex{nullptr};
     const CoinStatsHashType hash_type{request.params[0].isNull() ? CoinStatsHashType::HASH_SERIALIZED : ParseHashType(request.params[0].get_str())};
-    CCoinsStats stats{};
     bool index_requested = request.params[2].isNull() || request.params[2].get_bool();
 
     NodeContext& node = EnsureAnyNodeContext(request.context);
@@ -903,7 +902,9 @@ static RPCHelpMan gettxoutsetinfo()
         }
     }
 
-    if (GetUTXOStats(coins_view, *blockman, stats, hash_type, node.rpc_interruption_point, pindex, index_requested)) {
+    const std::optional<CCoinsStats> maybe_stats = GetUTXOStats(coins_view, *blockman, hash_type, node.rpc_interruption_point, pindex, index_requested);
+    if (maybe_stats.has_value()) {
+        const CCoinsStats& stats = maybe_stats.value();
         ret.pushKV("height", (int64_t)stats.nHeight);
         ret.pushKV("bestblock", stats.hashBlock.GetHex());
         ret.pushKV("txouts", (int64_t)stats.nTransactionOutputs);
@@ -923,9 +924,12 @@ static RPCHelpMan gettxoutsetinfo()
             ret.pushKV("total_unspendable_amount", ValueFromAmount(stats.total_unspendable_amount));
 
             CCoinsStats prev_stats{};
-
             if (pindex->nHeight > 0) {
-                GetUTXOStats(coins_view, *blockman, prev_stats, hash_type, node.rpc_interruption_point, pindex->pprev, index_requested);
+                const std::optional<CCoinsStats> maybe_prev_stats = GetUTXOStats(coins_view, *blockman, hash_type, node.rpc_interruption_point, pindex->pprev, index_requested);
+                if (!maybe_prev_stats) {
+                    throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
+                }
+                prev_stats = maybe_prev_stats.value();
             }
 
             UniValue block_info(UniValue::VOBJ);
@@ -2285,7 +2289,7 @@ UniValue CreateUTXOSnapshot(
     const fs::path& temppath)
 {
     std::unique_ptr<CCoinsViewCursor> pcursor;
-    CCoinsStats stats{};
+    std::optional<CCoinsStats> maybe_stats;
     const CBlockIndex* tip;
 
     {
@@ -2305,19 +2309,20 @@ UniValue CreateUTXOSnapshot(
 
         chainstate.ForceFlushStateToDisk();
 
-        if (!GetUTXOStats(&chainstate.CoinsDB(), chainstate.m_blockman, stats, CoinStatsHashType::HASH_SERIALIZED, node.rpc_interruption_point)) {
+        maybe_stats = GetUTXOStats(&chainstate.CoinsDB(), chainstate.m_blockman, CoinStatsHashType::HASH_SERIALIZED, node.rpc_interruption_point);
+        if (!maybe_stats) {
             throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
         }
 
         pcursor = chainstate.CoinsDB().Cursor();
-        tip = CHECK_NONFATAL(chainstate.m_blockman.LookupBlockIndex(stats.hashBlock));
+        tip = CHECK_NONFATAL(chainstate.m_blockman.LookupBlockIndex(maybe_stats->hashBlock));
     }
 
     LOG_TIME_SECONDS(strprintf("writing UTXO snapshot at height %s (%s) to file %s (via %s)",
         tip->nHeight, tip->GetBlockHash().ToString(),
         fs::PathToString(path), fs::PathToString(temppath)));
 
-    SnapshotMetadata metadata{tip->GetBlockHash(), stats.coins_count, tip->nChainTx};
+    SnapshotMetadata metadata{tip->GetBlockHash(), maybe_stats->coins_count, tip->nChainTx};
 
     afile << metadata;
 
@@ -2339,11 +2344,11 @@ UniValue CreateUTXOSnapshot(
     afile.fclose();
 
     UniValue result(UniValue::VOBJ);
-    result.pushKV("coins_written", stats.coins_count);
+    result.pushKV("coins_written", maybe_stats->coins_count);
     result.pushKV("base_hash", tip->GetBlockHash().ToString());
     result.pushKV("base_height", tip->nHeight);
     result.pushKV("path", path.u8string());
-    result.pushKV("txoutset_hash", stats.hashSerialized.ToString());
+    result.pushKV("txoutset_hash", maybe_stats->hashSerialized.ToString());
     // Cast required because univalue doesn't have serialization specified for
     // `unsigned int`, nChainTx's type.
     result.pushKV("nchaintx", uint64_t{tip->nChainTx});