Windows: Add type casting in CRYPTO_atomic_add to remove warning

CLA: trivial

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11337)

diff --git a/crypto/threads_win.c b/crypto/threads_win.c
index 43bd0f51d953fdcb5f9869bfd3b2f2ced21d13d1..4d95cd3fbb35ac399bed75e3ee710a4e23adfad8 100644 (file)
--- a/crypto/threads_win.c
+++ b/crypto/threads_win.c
@@ -155,7 +155,7 @@ int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
 
 int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
 {
-    *ret = InterlockedExchangeAdd(val, amount) + amount;
+    *ret = (int)InterlockedExchangeAdd((long volatile *)val, (long)amount) + amount;
     return 1;
 }