From 2ffad62529bdc4ca6afc95c5ef9a7144b5974ec6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Drwi=C4=99ga?= <tomusdrw@users.noreply.github.com>
Date: Wed, 28 Oct 2020 13:48:15 +0100
Subject: [PATCH] Make sure to use the optimized method instead of reading the
 storage. (#7445)

---
 substrate/frame/support/src/storage/unhashed.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/substrate/frame/support/src/storage/unhashed.rs b/substrate/frame/support/src/storage/unhashed.rs
index 34b146b86f..42f21cab49 100644
--- a/substrate/frame/support/src/storage/unhashed.rs
+++ b/substrate/frame/support/src/storage/unhashed.rs
@@ -83,7 +83,7 @@ pub fn take_or_else<T: Decode + Sized, F: FnOnce() -> T>(key: &[u8], default_val
 
 /// Check to see if `key` has an explicit entry in storage.
 pub fn exists(key: &[u8]) -> bool {
-	sp_io::storage::read(key, &mut [0;0][..], 0).is_some()
+	sp_io::storage::exists(key)
 }
 
 /// Ensure `key` has no explicit entry in storage.