Merge pull request #2284 from dgarske/api_test

Fixes for track memory and API unit test cleanup

tests/api.c

@@ -673,7 +673,6 @@ static void test_for_double_Free(void)
         /* First test freeing SSL, then CTX */
         wolfSSL_free(ssl);
         wolfSSL_CTX_free(ctx);
-        wolfSSL_Cleanup();
 
 #ifndef NO_WOLFSSL_CLIENT
         AssertNotNull(ctx = wolfSSL_CTX_new(wolfSSLv23_client_method()));

wolfssl/wolfcrypt/mem_track.h

@@ -184,6 +184,7 @@
             header->next = NULL;
             if (ourMemList.tail == NULL)  {
                 ourMemList.head = header;
+                header->prev = NULL;
             }
             else {
                 ourMemList.tail->next = header;