fix possible ref leak

diff --git a/Modules/_json.c b/Modules/_json.c
index 832b1ff627e3582cce9ffbe7dbfcbf106b9d44d0..437eab0eae3322712e3ee14e8b851a719f264031 100644 (file)
--- a/Modules/_json.c
+++ b/Modules/_json.c
@@ -431,6 +431,7 @@ scanstring_unicode(PyObject *pystr, Py_ssize_t end, int strict)
                 goto bail;
             }
             if (PyList_Append(chunks, chunk)) {
+                Py_DECREF(chunk);
                 goto bail;
             }
             Py_DECREF(chunk);
@@ -541,8 +542,7 @@ scanstring_unicode(PyObject *pystr, Py_ssize_t end, int strict)
     if (rval == NULL) {
         goto bail;
     }
-    Py_DECREF(chunks);
-    chunks = NULL;
+    Py_CLEAR(chunks);
     return Py_BuildValue("(Nn)", rval, end);
 bail:
     Py_XDECREF(chunks);