commit 669429fb583031c7c87392e30b065e99a2d8ccda
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Sep 12 15:00:56 2018 -0700
committer Berker Peksag <berker.peksag@gmail.com> Thu Sep 13 01:00:56 2018 +0300
tree a904ae030311f674017d8fdfa6c9d85468913d19
parent b36567bef80202f53ebe924dd183270c276497f8

bpo-34649: Add missing NULL checks to _encoded_const() (GH-9225)

Reported by Svace static analyzer.
(cherry picked from commit 6f82bffd2df63a4072b3f0483cdbe93ddedb87e9)

Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru>

Modules/_json.c

diff --git a/Modules/_json.c b/Modules/_json.c
index 28c0b3f..3a88882 100644
--- a/Modules/_json.c
+++ b/Modules/_json.c
@@ -1893,7 +1893,7 @@
         if (s_null == NULL) {
             s_null = PyString_InternFromString("null");
         }
-        Py_INCREF(s_null);
+        Py_XINCREF(s_null);
         return s_null;
     }
     else if (obj == Py_True) {
@@ -1901,7 +1901,7 @@
         if (s_true == NULL) {
             s_true = PyString_InternFromString("true");
         }
-        Py_INCREF(s_true);
+        Py_XINCREF(s_true);
         return s_true;
     }
     else if (obj == Py_False) {
@@ -1909,7 +1909,7 @@
         if (s_false == NULL) {
             s_false = PyString_InternFromString("false");
         }
-        Py_INCREF(s_false);
+        Py_XINCREF(s_false);
         return s_false;
     }
     else {