More more on SM2 error codes and tidy up

[openssl.git] / crypto / threads_none.c

diff --git a/crypto/threads_none.c b/crypto/threads_none.c
index ffad7576b171000b4802f5cdc9642cf7d2a75330..ab6db8e36b988519e42bb3f74829b144c6cc405b 100644 (file)
--- a/crypto/threads_none.c
+++ b/crypto/threads_none.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -14,9 +14,12 @@
 
 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
 {
-    CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int));
-    if (lock == NULL)
+    CRYPTO_RWLOCK *lock;
+
+    if ((lock = OPENSSL_zalloc(sizeof(unsigned int))) == NULL) {
+        /* Don't set error, to avoid recursion blowup. */
         return NULL;
+    }
 
     *(unsigned int *)lock = 1;
 
@@ -125,6 +128,18 @@ int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
     return 1;
 }
 
+int CRYPTO_atomic_read(int *val, int *ret, CRYPTO_RWLOCK *lock)
+{
+    *ret = *val;
+    return 1;
+}
+
+int CRYPTO_atomic_write(int *val, int n, CRYPTO_RWLOCK *lock)
+{
+    *val = n;
+    return 1;
+}
+
 int openssl_init_fork_handlers(void)
 {
     return 0;