Fix a leak that would happen under error conditions (found by Coverty).

diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c
index 336f26543f63b76b4350b4da00ec0377dae9bc05..2816a6a2ab1e7fad2185fa5f602afad1d9dbd8c9 100644 (file)
--- a/Modules/_ctypes/cfield.c
+++ b/Modules/_ctypes/cfield.c
@@ -1317,6 +1317,7 @@ Z_set(void *ptr, PyObject *value, unsigned size)
                if (-1 == PyUnicode_AsWideChar((PyUnicodeObject *)value,
                                               buffer, PyUnicode_GET_SIZE(value))) {
                        Py_DECREF(value);
+                       Py_DECREF(keep);
                        return NULL;
                }
                Py_DECREF(value);