From f2d62eb5a19535a1955bc21cb6363e36272b11ef Mon Sep 17 00:00:00 2001
From: Will Newton <will.newton@cocoon.life>
Date: Tue, 4 Oct 2016 16:06:05 +0100
Subject: [PATCH] iwlib/utils.h: Avoid leaking reference to object

If we don't decrement the reference count of the object we insert into
the dictionary then we will leak the object later.

http://nedbatchelder.com/blog/200911/memory_leak_mystery.html
---
 iwlib/utils.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/iwlib/utils.h b/iwlib/utils.h
index fc37ea2..0589c82 100644
--- a/iwlib/utils.h
+++ b/iwlib/utils.h
@@ -13,8 +13,10 @@
 #define SAFE_SETITEMSTRING(dict, key, value) do { \
     PyObject *__tmp; \
     __tmp = value; \
-    if (__tmp) \
+    if (__tmp) { \
         PyDict_SetItemString(dict, key, __tmp); \
+	Py_DECREF(__tmp); \
+    } \
 } while(0)