Don't leak when PyDict_SetItemString called

Author: coretl

softioc/extension.c

@@ -20,14 +20,17 @@
 
 /* Helper for function below. */
 #define ADD_ENUM(dict, name) \
-    PyDict_SetItemString(dict, #name, PyInt_FromLong(name))
+    tmp = PyInt_FromLong(name); \
+    PyDict_SetItemString(dict, #name, tmp); \
+    Py_XDECREF(tmp);
 
 /* Alas, EPICS has changed the numerical assignments of the DBF_ enums between
  * versions, so to avoid unpleasant surprises, we compute thes values here in C
  * and pass them back to the Python layer. */
 static PyObject *get_DBF_values(PyObject *self, PyObject *args)
 {
     PyObject *dict = PyDict_New();
+    PyObject *tmp;
     ADD_ENUM(dict, DBF_STRING);
     ADD_ENUM(dict, DBF_CHAR);
     ADD_ENUM(dict, DBF_UCHAR);
@@ -77,6 +80,7 @@ static PyObject *get_field_offsets(PyObject *self, PyObject *args)
             dbentry.pflddes->size,
             dbentry.pflddes->field_type);
         PyDict_SetItemString(dict, field_name, ost);
+        Py_XDECREF(ost);
         status = dbNextField(&dbentry, 0);
     }