[3.12] gh-105673: Fix uninitialized warning in sysmodule.c (GH-105674) (#105675)

In sys_add_xoption(), 'value' may be uninitialized for some error paths.
(cherry picked from commit a8d69fe92c65d636fc454cfb1825c357eb2e6325)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>

diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index a05bdf0ea7eef551204faac8249855f2957e5669..b8254f4e94fd0f743549adcd902a2dacee69a97c 100644 (file)
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -3371,7 +3371,7 @@ err_occurred:
 static int
 sys_add_xoption(PyObject *opts, const wchar_t *s)
 {
-    PyObject *name, *value;
+    PyObject *name, *value = NULL;
 
     const wchar_t *name_end = wcschr(s, L'=');
     if (!name_end) {