From ee06eb28fb27541ca81f072ff306ea0f85fa0b35 Mon Sep 17 00:00:00 2001
From: Francisco de Borja Aranda Castillejo <borja.aranda@smartcontract.com>
Date: Tue, 19 Mar 2024 17:33:35 +0100
Subject: [PATCH] add reentrancy guard (#12447)

Signed-off-by: Borja Aranda <borja.aranda@smartcontract.com>
---
 .../v0.8/automation/upkeeps/LinkAvailableBalanceMonitor.sol    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contracts/src/v0.8/automation/upkeeps/LinkAvailableBalanceMonitor.sol b/contracts/src/v0.8/automation/upkeeps/LinkAvailableBalanceMonitor.sol
index ea01678fe76..dfbfb78d3d6 100644
--- a/contracts/src/v0.8/automation/upkeeps/LinkAvailableBalanceMonitor.sol
+++ b/contracts/src/v0.8/automation/upkeeps/LinkAvailableBalanceMonitor.sol
@@ -266,6 +266,7 @@ contract LinkAvailableBalanceMonitor is AccessControl, AutomationCompatibleInter
     for (uint256 idx = 0; idx < targetAddresses.length; idx++) {
       address targetAddress = targetAddresses[idx];
       contractToFund = s_targets[targetAddress];
+      s_targets[targetAddress].lastTopUpTimestamp = uint56(block.timestamp);
       if (
         localBalance >= contractToFund.topUpAmount &&
         _needsFunding(
@@ -278,12 +279,12 @@ contract LinkAvailableBalanceMonitor is AccessControl, AutomationCompatibleInter
         bool success = i_linkToken.transfer(targetAddress, contractToFund.topUpAmount);
         if (success) {
           localBalance -= contractToFund.topUpAmount;
-          s_targets[targetAddress].lastTopUpTimestamp = uint56(block.timestamp);
           emit TopUpSucceeded(targetAddress);
         } else {
           emit TopUpFailed(targetAddress);
         }
       } else {
+        s_targets[targetAddress].lastTopUpTimestamp = contractToFund.lastTopUpTimestamp;
         emit TopUpBlocked(targetAddress);
       }
     }