1 files changed, 8 insertions, 1 deletions
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 07d1b6e..80b1956 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -3820,17 +3820,24 @@ PyUnicode_AsUTF8AndSize(PyObject *unicode, Py_ssize_t *psize)
 {
     if (!PyUnicode_Check(unicode)) {
         PyErr_BadArgument();
+        if (psize) {
+            *psize = -1;
+        }
         return NULL;
     }
 
     if (PyUnicode_UTF8(unicode) == NULL) {
         if (unicode_fill_utf8(unicode) == -1) {
+            if (psize) {
+                *psize = -1;
+            }
             return NULL;
         }
     }
 
-    if (psize)
+    if (psize) {
         *psize = PyUnicode_UTF8_LENGTH(unicode);
+    }
     return PyUnicode_UTF8(unicode);
 }