[3.11] gh-98539: Make _SSLTransportProtocol.abort() safe to call when…

… closed (GH-104474) (#104485) (cherry picked from commit fb8739f) Co-authored-by: Sam Bull <git@sambull.org>
python · May 14, 2023 · 1afc0a9 · 1afc0a9
1 parent 8e79414
commit 1afc0a9
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Lib/asyncio/sslproto.py b/Lib/asyncio/sslproto.py
@@ -244,7 +244,8 @@ def abort(self):
         called with None as its argument.
         """
         self._closed = True
-        self._ssl_protocol._abort()
+        if self._ssl_protocol is not None:
+            self._ssl_protocol._abort()
 
     def _force_close(self, exc):
         self._closed = True