From 94d2c0da730705a1b01d0477f6ca56605eb50eaa Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Tue, 25 Sep 2018 11:02:18 +0300
Subject: [PATCH] bpo-34794: Fix a memory leak in Tkinter.Image. A Tcl object
 was leaked when set the data or maskdata options.

---
 .../next/Library/2018-09-25-11-04-12.bpo-34794.HGyLx-.rst       | 2 ++
 Modules/_tkinter.c                                              | 1 +
 2 files changed, 3 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2018-09-25-11-04-12.bpo-34794.HGyLx-.rst

diff --git a/Misc/NEWS.d/next/Library/2018-09-25-11-04-12.bpo-34794.HGyLx-.rst b/Misc/NEWS.d/next/Library/2018-09-25-11-04-12.bpo-34794.HGyLx-.rst
new file mode 100644
index 00000000000000..c58a37b10b8f04
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2018-09-25-11-04-12.bpo-34794.HGyLx-.rst
@@ -0,0 +1,2 @@
+Fixed a memory leak in :class:`Tkinter.Image` when set the *data* or
+*maskdata* options.
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index c71ffd016ad881..9b8a4044803290 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -3230,6 +3230,7 @@ Tkapp_CreateByteArray(PyObject *self, PyObject *args)
         return Tkinter_Error(self);
     }
     res = newPyTclObject(obj);
+    Tcl_DecrRefCount(obj);
     PyBuffer_Release(&view);
     return res;
 }