[Bf-blender-cvs] [a3b4c3823ca] master: Fix T54966: mathutils.noise.voronoi Memory leak

[Bastien Montagne]

Commit: a3b4c3823ca7e16e6414a1dc39454a18fddb8e77
Author: Bastien Montagne
Date:   Mon May 7 11:07:11 2018 +0200
Branches: master
https://developer.blender.org/rBa3b4c3823ca7e16e6414a1dc39454a18fddb8e77

Fix T54966: mathutils.noise.voronoi Memory leak

C code was not correctly handling release of temp data, not technically
a memory leak, but indeed rather annoying bug! ;)

===================================================================

M	source/blender/python/mathutils/mathutils_noise.c

===================================================================

diff --git a/source/blender/python/mathutils/mathutils_noise.c b/source/blender/python/mathutils/mathutils_noise.c
index 143e51ecfd8..1fb6d306f96 100644
--- a/source/blender/python/mathutils/mathutils_noise.c
+++ b/source/blender/python/mathutils/mathutils_noise.c
@@ -731,6 +731,7 @@ static PyObject *M_Noise_voronoi(PyObject *UNUSED(self), PyObject *args)
 {
 	PyObject *value;
 	PyObject *list;
+	PyObject *ret;
 	float vec[3];
 	float da[4], pa[12];
 	int dtype = 0;
@@ -749,10 +750,14 @@ static PyObject *M_Noise_voronoi(PyObject *UNUSED(self), PyObject *args)
 	voronoi(vec[0], vec[1], vec[2], da, pa, me, dtype);
 
 	for (i = 0; i < 4; i++) {
-		PyList_SET_ITEM(list, i, Vector_CreatePyObject(pa + 3 * i, 3, NULL));
+		PyObject *v = Vector_CreatePyObject(pa + 3 * i, 3, NULL);
+		PyList_SET_ITEM(list, i, v);
+		Py_DECREF(v);
 	}
 
-	return Py_BuildValue("[[ffff]O]", da[0], da[1], da[2], da[3], list);
+	ret = Py_BuildValue("[[ffff]O]", da[0], da[1], da[2], da[3], list);
+	Py_DECREF(list);
+	return ret;
 }
 
 PyDoc_STRVAR(M_Noise_cell_doc,