From 96b58359ebe2c2effb7165f10a7e7f597f876fe3 Mon Sep 17 00:00:00 2001
From: Jarrod Johnson <jjohnson2@lenovo.com>
Date: Fri, 16 Apr 2021 15:41:25 -0400
Subject: [PATCH] Do not error on None callback

A keepalive is not required to provide a callback.

Change-Id: Id7b277f60097e0d825b307b15d39b64f2b3447da
---
 pyghmi/ipmi/private/session.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pyghmi/ipmi/private/session.py b/pyghmi/ipmi/private/session.py
index e30f2ff7..763db680 100644
--- a/pyghmi/ipmi/private/session.py
+++ b/pyghmi/ipmi/private/session.py
@@ -1821,6 +1821,8 @@ class Session(object):
                 # if a code somehow makes duplicate SOL handlers,
                 # this would notify all the handlers rather than just the
                 # last one to take ownership
+                if self._customkeepalives[ka][1] is None:
+                    continue
                 self._customkeepalives[ka][1](
                     {'error': 'Session Disconnected'})
         self._customkeepalives = None