[Python-checkins] gh-132983: Fix refleak in zstd dictionary functions (gh-134459)

[ericsnowcurrently]

https://github.com/python/cpython/commit/fb68776591485cacd63a97a342bf294a6ae6d4e4
commit: fb68776591485cacd63a97a342bf294a6ae6d4e4
branch: main
author: Emma Smith <e...@emmatyping.dev>
committer: ericsnowcurrently <ericsnowcurren...@gmail.com>
date: 2025-05-21T19:09:34Z
summary:

gh-132983: Fix refleak in zstd dictionary functions (gh-134459)

files:
M Modules/_zstd/_zstdmodule.c

diff --git a/Modules/_zstd/_zstdmodule.c b/Modules/_zstd/_zstdmodule.c
index b2e4f95b906356..17d3bff1e98769 100644
--- a/Modules/_zstd/_zstdmodule.c
+++ b/Modules/_zstd/_zstdmodule.c
@@ -251,7 +251,7 @@ _zstd_train_dict_impl(PyObject *module, PyBytesObject 
*samples_bytes,
                                             &chunk_sizes);
     if (chunks_number < 0)
     {
-        return NULL;
+        goto error;
     }
 
     /* Allocate dict buffer */
@@ -333,7 +333,7 @@ _zstd_finalize_dict_impl(PyObject *module, PyBytesObject 
*custom_dict_bytes,
                                             &chunk_sizes);
     if (chunks_number < 0)
     {
-        return NULL;
+        goto error;
     }
 
     /* Allocate dict buffer */

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