From 62ee43d82223f13f6ba8a30a114ba162d6a27e20 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Thei=C3=9Fen?= <alex.theissen@me.com>
Date: Tue, 21 Dec 2021 18:36:46 +0100
Subject: [PATCH] Use exists host function (#10531)

---
 substrate/frame/support/src/storage/child.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/substrate/frame/support/src/storage/child.rs b/substrate/frame/support/src/storage/child.rs
index 4b237aaa56..5497f64206 100644
--- a/substrate/frame/support/src/storage/child.rs
+++ b/substrate/frame/support/src/storage/child.rs
@@ -112,8 +112,7 @@ pub fn take_or_else<T: Codec + Sized, F: FnOnce() -> T>(
 pub fn exists(child_info: &ChildInfo, key: &[u8]) -> bool {
 	match child_info.child_type() {
 		ChildType::ParentKeyId =>
-			sp_io::default_child_storage::read(child_info.storage_key(), key, &mut [0; 0][..], 0)
-				.is_some(),
+			sp_io::default_child_storage::exists(child_info.storage_key(), key),
 	}
 }