From c6fdddeddbbe176ada161955094739998ff15272 Mon Sep 17 00:00:00 2001
From: Sebastian Berg <sebastian@sipsolutions.net>
Date: Tue, 27 Jul 2021 14:47:23 -0700
Subject: BUG: Fix `signature_tuple` refcount in ufunc loop registration

---
 numpy/core/src/umath/ufunc_object.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'numpy')

diff --git a/numpy/core/src/umath/ufunc_object.c b/numpy/core/src/umath/ufunc_object.c
index c2554bd2e..5a32ae603 100644
--- a/numpy/core/src/umath/ufunc_object.c
+++ b/numpy/core/src/umath/ufunc_object.c
@@ -5560,6 +5560,8 @@ PyUFunc_RegisterLoopForType(PyUFuncObject *ufunc,
             goto fail;
         }
     }
+    /* Clearing sets it to NULL for the error paths */
+    Py_CLEAR(signature_tuple);
 
     funcdata->func = function;
     funcdata->arg_types = newtypes;
@@ -5630,7 +5632,6 @@ PyUFunc_RegisterLoopForType(PyUFuncObject *ufunc,
         }
     }
     Py_DECREF(key);
-    Py_DECREF(signature_tuple);
     return 0;
 
  fail:
-- 
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