Fix GCC warning in Python/hamt.c (GH-7618)

diff --git a/Python/hamt.c b/Python/hamt.c
index f8bce5961afc61f87bbc33f715d0ab8c09852d30..562f777ea0bf86837c5d240f05e9a30cda91994e 100644 (file)
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -2348,7 +2348,7 @@ _PyHamt_Without(PyHamtObject *o, PyObject *key)
         return NULL;
     }
 
-    PyHamtNode *new_root;
+    PyHamtNode *new_root = NULL;
 
     hamt_without_t res = hamt_node_without(
         (PyHamtNode *)(o->h_root),