Decref all if ensure_fromlist fails. Fixes #876533.

diff --git a/Python/import.c b/Python/import.c
index 6e97899abbbba5bc0eff1ff5bd14bb622c18b36c..670e603e64c6cdcf37701d9111980a3666d86db5 100644 (file)
--- a/Python/import.c
+++ b/Python/import.c
@@ -2178,9 +2178,10 @@ ensure_fromlist(PyObject *mod, PyObject *fromlist, char *buf, int buflen,
                        if (all == NULL)
                                PyErr_Clear();
                        else {
-                               if (!ensure_fromlist(mod, all, buf, buflen, 1))
-                                       return 0;
+                               int ret = ensure_fromlist(mod, all, buf, buflen, 1);
                                Py_DECREF(all);
+                               if (!ret)
+                                       return 0;
                        }
                        continue;
                }