[pygobject] Fix some small memory leaks

[Patrick Griffis <pgriffis src gnome org>]

commit c4d1b44fe0d69a49d70f1b7b287ea2377947703e
Author: David King <amigadave amigadave com>
Date:   Wed Jul 14 10:35:52 2021 +0100

    Fix some small memory leaks
    
    Found by Coverity.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1938851

 gi/pygflags.c  | 5 ++++-
 gi/pygi-info.c | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/gi/pygflags.c b/gi/pygflags.c
index a9c443b6..df1280f9 100644
--- a/gi/pygflags.c
+++ b/gi/pygflags.c
@@ -108,10 +108,13 @@ pyg_flags_repr(PyGFlags *self)
     tmp = generate_repr(self->gtype, (guint)PyLong_AsUnsignedLongMask ((PyObject*)self));
 
     module = PyObject_GetAttrString ((PyObject *)self, "__module__");
-    if (module == NULL)
+    if (module == NULL) {
+        g_free (tmp);
         return NULL;
+    }
 
     if (!PyUnicode_Check (module)) {
+        g_free (tmp);
         Py_DECREF (module);
         return NULL;
     }
diff --git a/gi/pygi-info.c b/gi/pygi-info.c
index 19894e49..aee5d4db 100644
--- a/gi/pygi-info.c
+++ b/gi/pygi-info.c
@@ -1862,6 +1862,7 @@ _pygi_g_registered_type_info_check_object (GIRegisteredTypeInfo *info,
 
         object_type = (PyTypeObject *) PyObject_Type (object);
         if (object_type == NULL) {
+            g_free (type_name_expected);
             return -1;
         }