Issue #4046: Backport of issue #3312's patch: fixes two crashes in the sqlite3

module.

1 files changed, 4 insertions, 1 deletions

diff --git a/Modules/_sqlite/module.c b/Modules/_sqlite/module.c
index 606454ca1f..bfaf730e0c 100644
--- a/Modules/_sqlite/module.c
+++ b/Modules/_sqlite/module.c
@@ -128,12 +128,15 @@ static PyObject* module_register_adapter(PyObject* self, PyObject* args, PyObjec
 {
     PyTypeObject* type;
     PyObject* caster;
+    int rc;
 
     if (!PyArg_ParseTuple(args, "OO", &type, &caster)) {
         return NULL;
     }
 
-    microprotocols_add(type, (PyObject*)&SQLitePrepareProtocolType, caster);
+    rc = microprotocols_add(type, (PyObject*)&SQLitePrepareProtocolType, caster);
+    if (rc == -1)
+        return NULL;
 
     Py_INCREF(Py_None);
     return Py_None;