From 00e7148c38794016a0b01f6165ae81aa7a2ad4ea Mon Sep 17 00:00:00 2001
From: Samuel Onoja <samiodev@icloud.com>
Date: Tue, 10 Dec 2024 23:53:41 +0100
Subject: [PATCH] minor changes to error

---
 mm2src/coins/z_coin.rs         | 2 +-
 mm2src/coins/z_coin/storage.rs | 9 +++------
 mm2src/coins/z_coin/z_htlc.rs  | 2 +-
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/mm2src/coins/z_coin.rs b/mm2src/coins/z_coin.rs
index 7e3b02ff64..8f52649a3d 100644
--- a/mm2src/coins/z_coin.rs
+++ b/mm2src/coins/z_coin.rs
@@ -480,7 +480,7 @@ impl ZCoin {
         // and saving them to the wallet database for future spends
         store_change_output(self.consensus_params_ref(), &self.z_fields.light_wallet_db, &tx)
             .await
-            .mm_err(GenTxError::SaveChangeNotesError)?;
+            .map_to_mm(GenTxError::SaveChangeNotesError)?;
 
         let additional_data = AdditionalTxData {
             received_by_me,
diff --git a/mm2src/coins/z_coin/storage.rs b/mm2src/coins/z_coin/storage.rs
index 5699a86ade..8c29f81f33 100644
--- a/mm2src/coins/z_coin/storage.rs
+++ b/mm2src/coins/z_coin/storage.rs
@@ -5,7 +5,6 @@ pub use blockdb::*;
 
 pub mod walletdb;
 #[cfg(target_arch = "wasm32")] mod z_params;
-use mm2_err_handle::prelude::MapToMmResult;
 #[cfg(target_arch = "wasm32")]
 pub(crate) use z_params::ZcashParamsWasmImpl;
 
@@ -202,11 +201,9 @@ pub(crate) async fn store_change_output(
     params: &ZcoinConsensusParams,
     shared_db: &WalletDbShared,
     tx: &Transaction,
-) -> MmResult<(), String> {
-    let mut data = shared_db.db.get_update_ops().map_to_mm(|err| err.to_string())?;
-    decrypt_and_store_transaction(params, &mut data, tx)
-        .await
-        .map_to_mm(|err| err.to_string())?;
+) -> Result<(), String> {
+    let mut data = try_s!(shared_db.db.get_update_ops());
+    try_s!(decrypt_and_store_transaction(params, &mut data, tx).await);
 
     Ok(())
 }
diff --git a/mm2src/coins/z_coin/z_htlc.rs b/mm2src/coins/z_coin/z_htlc.rs
index 50052424c3..bd32389f51 100644
--- a/mm2src/coins/z_coin/z_htlc.rs
+++ b/mm2src/coins/z_coin/z_htlc.rs
@@ -195,7 +195,7 @@ pub async fn z_p2sh_spend(
     // and saving them to the wallet database for future spends
     store_change_output(coin.consensus_params_ref(), &coin.z_fields.light_wallet_db, &zcash_tx)
         .await
-        .mm_err(|err| ZP2SHSpendError::GenTxError(GenTxError::SaveChangeNotesError(err)))?;
+        .map_to_mm(|err| ZP2SHSpendError::GenTxError(GenTxError::SaveChangeNotesError(err)))?;
 
     coin.utxo_rpc_client()
         .send_raw_transaction(tx_buffer.into())