list2set(): PyList_GetItem could fail.

diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index a1e3cf0deacb79c7604d5c54476060e95d76bcad..dfe95484cfd862076a011e40d3195217cc0bc6a1 100644 (file)
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -100,7 +100,9 @@ list2set(list, set, fd2obj)
                SOCKET v;
 
                /* any intervening fileno() calls could decr this refcnt */
-               o = PyList_GetItem(list, i);
+               if (!(o = PyList_GetItem(list, i)))
+                    return NULL;
+
                Py_INCREF(o);
 
                if (PyInt_Check(o)) {