Fix a memory leak in the C tracer. Thanks to Yann Malet for reporting it.

1 files changed, 3 insertions, 1 deletions

diff --git a/coverage/tracer.c b/coverage/tracer.c
index 8c115708..2ecd187a 100644
--- a/coverage/tracer.c
+++ b/coverage/tracer.c
@@ -388,7 +388,9 @@ Tracer_trace(Tracer *self, PyFrameObject *frame, int what, PyObject *arg)
                 }

                 else {

                     /* Tracing lines: key is simply this_line. */

-                    PyDict_SetItem(self->cur_file_data, MyInt_FromLong(frame->f_lineno), Py_None);

+                    PyObject * this_line = MyInt_FromLong(frame->f_lineno);

+                    PyDict_SetItem(self->cur_file_data, this_line, Py_None);

+                    Py_DECREF(this_line);

                 }

             }

             self->last_line = frame->f_lineno;