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Issue #28653: Fix a refleak in functools.lru_cache.

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This commit is contained in:
Yury Selivanov 2016-11-09 18:55:45 -05:00
parent 28f42fd4f8
commit 46a02db90b
3 changed files with 27 additions and 2 deletions
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8
Modules/_functoolsmodule.c
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@ -781,8 +781,10 @@ infinite_lru_cache_wrapper(lru_cache_object *self, PyObject *args, PyObject *kwd
if (!key)
return NULL;
hash = PyObject_Hash(key);
if (hash == -1)
if (hash == -1) {
Py_DECREF(key);
return NULL;
}
result = _PyDict_GetItem_KnownHash(self->cache, key, hash);
if (result) {
Py_INCREF(result);
@ -837,8 +839,10 @@ bounded_lru_cache_wrapper(lru_cache_object *self, PyObject *args, PyObject *kwds
if (!key)
return NULL;
hash = PyObject_Hash(key);
if (hash == -1)
if (hash == -1) {
Py_DECREF(key);
return NULL;
}
link = (lru_list_elem *)_PyDict_GetItem_KnownHash(self->cache, key, hash);
if (link) {
lru_cache_extricate_link(link);