From f49452c297438ec349a76dfa38fa26a780084f96 Mon Sep 17 00:00:00 2001
From: Pauli <paul.dale@oracle.com>
Date: Wed, 11 Oct 2017 09:47:54 +1000
Subject: Return a value from atomic read on Windows. Use a read lock when
 reading using pthreads.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4517)
---
 crypto/threads_win.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'crypto/threads_win.c')

diff --git a/crypto/threads_win.c b/crypto/threads_win.c
index ab2eb25740..f222aa5d03 100644
--- a/crypto/threads_win.c
+++ b/crypto/threads_win.c
@@ -135,7 +135,7 @@ int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
 
 int CRYPTO_atomic_read(int *val, int *ret, CRYPTO_RWLOCK *lock)
 {
-    InterlockedCompareExchange(val, 0, 0);
+    *ret = InterlockedCompareExchange(val, 0, 0);
     return 1;
 }
 
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