Add a lot of missing Py_INCREF
diff --git a/OpenSSL/ssl/context.c b/OpenSSL/ssl/context.c
index 71578c4..9c0050a 100644
--- a/OpenSSL/ssl/context.c
+++ b/OpenSSL/ssl/context.c
@@ -1316,6 +1316,9 @@
         return 0;
     }
 
+    /* PyModule_AddObject steals a reference.
+     */
+    Py_INCREF((PyObject *)&ssl_Context_Type);
     if (PyModule_AddObject(module, "ContextType", (PyObject *)&ssl_Context_Type) < 0) {
         return 0;
     }