From: Victor Stinner <vstinner@python.org>
Date: Fri, 23 May 2025 01:50:15 +0200
Subject: Fix dsdp.sdp() reference counting

Origin: upstream, https://github.com/cvxopt/cvxopt/pull/261
Bug-Debian: https://bugs.debian.org/1117894
Last-Update: 2025-10-12
---
 src/C/dsdp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/C/dsdp.c b/src/C/dsdp.c
index 792ceee..2640170 100644
--- a/src/C/dsdp.c
+++ b/src/C/dsdp.c
@@ -176,14 +176,17 @@ static PyObject* solvesdp(PyObject *self, PyObject *args,
         goto done;
     }
 
-    if (opts && PyDict_Check(opts))
+    if (opts && PyDict_Check(opts)) {
+        Py_INCREF(opts);
         param = opts;
+    }
     else
         param = PyObject_GetAttrString(dsdp_module, "options");
     if (!param || !PyDict_Check(param)){
         PyErr_SetString(PyExc_AttributeError, "missing dsdp.options "
             " dictionary");
         t = NULL;
+        Py_XDECREF(param);
         goto done;
     }
     while (PyDict_Next(param, &pos, &key, &value))