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 30ed4e6999cc6c1fbae8fa35d682468e7ab5513f..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;