From 89c517d7ac108dea00a5070e5e05fa51b6f81b84 Mon Sep 17 00:00:00 2001
From: nxqbao <quocbao300@gmail.com>
Date: Fri, 10 Mar 2023 14:21:20 +0700
Subject: [PATCH] fix updating 0 length array

---
 contracts/ronin/validator/CandidateManager.sol | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/contracts/ronin/validator/CandidateManager.sol b/contracts/ronin/validator/CandidateManager.sol
index 364dfe82b..66afe0115 100644
--- a/contracts/ronin/validator/CandidateManager.sol
+++ b/contracts/ronin/validator/CandidateManager.sol
@@ -235,10 +235,11 @@ abstract contract CandidateManager is ICandidateManager, PercentageConsumer, Glo
       }
     }
 
+    assembly {
+      mstore(_unsatisfiedCandidates, _unsatisfiedCount)
+    }
+
     if (_unsatisfiedCount > 0) {
-      assembly {
-        mstore(_unsatisfiedCandidates, _unsatisfiedCount)
-      }
       emit CandidatesRevoked(_unsatisfiedCandidates);
       _staking.execDeprecatePools(_unsatisfiedCandidates, _nextPeriod);
     }