From 14f901da6dc522e21f2d18dae2d798318ee6a2ef Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Mon, 5 Jul 2021 22:20:27 -0700
Subject: [PATCH] util/deephash: fix sync.Pool usage

Whoops.

From yesterday's 9ae3bd09394c8d41bc065fdf8856739b468f51f7 (not yet
used by anything, fortunately)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
---
 util/deephash/deephash.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/deephash/deephash.go b/util/deephash/deephash.go
index ac1c267c7..e3f0dfcf9 100644
--- a/util/deephash/deephash.go
+++ b/util/deephash/deephash.go
@@ -53,7 +53,7 @@ var hasherPool = &sync.Pool{
 // Hash returns the raw SHA-256 hash of v.
 func Hash(v interface{}) [sha256.Size]byte {
 	hasher := hasherPool.Get().(*hasher)
-	hasherPool.Put(hasher)
+	defer hasherPool.Put(hasher)
 	return hasher.Hash(v)
 }