From 7798fafb53081cb22407bc4371247413146fda7b Mon Sep 17 00:00:00 2001
From: Dimi <dlee@mozilla.com>
Date: Thu, 10 Oct 2024 14:33:37 +0800
Subject: [PATCH] Init variable length prefix set in constructor. r=timhuang, a=RyanVM

---
 toolkit/components/url-classifier/LookupCache.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/toolkit/components/url-classifier/LookupCache.cpp b/toolkit/components/url-classifier/LookupCache.cpp
index d0b03054f1..0931c93048 100644
--- a/toolkit/components/url-classifier/LookupCache.cpp
+++ b/toolkit/components/url-classifier/LookupCache.cpp
@@ -171,7 +171,8 @@ LookupCache::LookupCache(const nsACString& aTableName,
     : mPrimed(false),
       mTableName(aTableName),
       mProvider(aProvider),
-      mRootStoreDirectory(aRootStoreDir) {
+      mRootStoreDirectory(aRootStoreDir),
+      mVLPrefixSet(nullptr) {
   UpdateRootDirHandle(mRootStoreDirectory);
 }
 
@@ -192,6 +193,8 @@ nsresult LookupCache::Open() {
 }
 
 nsresult LookupCache::Init() {
+  MOZ_ASSERT(!mVLPrefixSet);
+
   mVLPrefixSet = new VariableLengthPrefixSet();
   nsresult rv = mVLPrefixSet->Init(mTableName);
   NS_ENSURE_SUCCESS(rv, rv);
-- 
2.27.0