commit 5a57ade58ec5bee85db41b8ce1340ff077781b65
author Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:59 2015 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:59 2015 +0200
tree 2f8cf61efba46284b2d4437916bc3469d23c0ce3
parent a198645fa0f9a9c6183c211955083765dc8ab3a8

Issue #20440: Massive replacing unsafe attribute setting code with special
macro Py_SETREF.

Modules/signalmodule.c

diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index 70f3052..da454de 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -1266,8 +1266,7 @@
     if (Handlers[SIGINT].func == DefaultHandler) {
         /* Install default int handler */
         Py_INCREF(IntHandler);
-        Py_DECREF(Handlers[SIGINT].func);
-        Handlers[SIGINT].func = IntHandler;
+        Py_SETREF(Handlers[SIGINT].func, IntHandler);
         old_siginthandler = PyOS_setsig(SIGINT, signal_handler);
     }