close_fast_market_order.rs ammended

Author: Bengt Lofgren

solana/programs/matching-engine/src/fallback/processor/close_fast_market_order.rs

@@ -59,8 +59,8 @@ pub fn close_fast_market_order(accounts: &[AccountInfo]) -> Result<()> {
         msg!("Refund recipient (account #2) is not a signer");
         return Err(ProgramError::InvalidAccountData.into());
     }
-    let fast_market_order_deserialized =
-        FastMarketOrder::try_deserialize(&mut &fast_market_order.data.borrow()[..])?;
+    let fast_market_order_data = &fast_market_order.data.borrow()[..];
+    let fast_market_order_deserialized = FastMarketOrder::try_read(fast_market_order_data)?;
     // Check that the fast_market_order is owned by the close_account_refund_recipient
     if fast_market_order_deserialized.close_account_refund_recipient
         != close_account_refund_recipient.key().as_ref()
@@ -75,15 +75,13 @@ pub fn close_fast_market_order(accounts: &[AccountInfo]) -> Result<()> {
         );
     }
 
-    let fast_market_order_data =
-        FastMarketOrder::try_deserialize(&mut &fast_market_order.data.borrow()[..])?;
-    if fast_market_order_data.close_account_refund_recipient
+    if fast_market_order_deserialized.close_account_refund_recipient
         != close_account_refund_recipient.key().as_ref()
     {
         return Err(MatchingEngineError::MismatchingCloseAccountRefundRecipient.into()).map_err(
             |e: Error| {
                 e.with_pubkeys((
-                    Pubkey::from(fast_market_order_data.close_account_refund_recipient),
+                    Pubkey::from(fast_market_order_deserialized.close_account_refund_recipient),
                     close_account_refund_recipient.key(),
                 ))
             },