systemd-python: correct data_threshold error return value

diff --git a/src/python-systemd/_reader.c b/src/python-systemd/_reader.c
index 9d7ce2da2738a43086818f7cae0dfb6ec25eea5e..d2f738b9c7d0f0a14780050671248a3d5bf6c94e 100644 (file)
--- a/src/python-systemd/_reader.c
+++ b/src/python-systemd/_reader.c
@@ -688,7 +688,7 @@ Journal_set_data_threshold(Journal *self, PyObject *value, void *closure)
     if (r < 0) {
         errno = -r;
         PyErr_SetFromErrno(PyExc_OSError);
-        return NULL;
+        return -1;
     }
     return 0;
 }