From c8aa55439f28bac2f4cec43396717dea61013181 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Fri, 10 Apr 2020 17:55:33 -0500
Subject: [PATCH] Undo NUT update listener on config reload (#33986)

---
 homeassistant/components/nut/__init__.py | 9 +++++++--
 homeassistant/components/nut/const.py    | 1 +
 homeassistant/components/nut/sensor.py   | 2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/homeassistant/components/nut/__init__.py b/homeassistant/components/nut/__init__.py
index de1bcca5b31..82fc3063693 100644
--- a/homeassistant/components/nut/__init__.py
+++ b/homeassistant/components/nut/__init__.py
@@ -29,6 +29,7 @@ from .const import (
     PYNUT_MODEL,
     PYNUT_NAME,
     PYNUT_UNIQUE_ID,
+    UNDO_UPDATE_LISTENER,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -77,6 +78,8 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
 
     _LOGGER.debug("NUT Sensors Available: %s", status)
 
+    undo_listener = entry.add_update_listener(_async_update_listener)
+
     hass.data[DOMAIN][entry.entry_id] = {
         COORDINATOR: coordinator,
         PYNUT_DATA: data,
@@ -85,10 +88,9 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
         PYNUT_MODEL: _model_from_status(status),
         PYNUT_FIRMWARE: _firmware_from_status(status),
         PYNUT_NAME: data.name,
+        UNDO_UPDATE_LISTENER: undo_listener,
     }
 
-    entry.add_update_listener(_async_update_listener)
-
     for component in PLATFORMS:
         hass.async_create_task(
             hass.config_entries.async_forward_entry_setup(entry, component)
@@ -171,6 +173,9 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
             ]
         )
     )
+
+    hass.data[DOMAIN][entry.entry_id][UNDO_UPDATE_LISTENER]()
+
     if unload_ok:
         hass.data[DOMAIN].pop(entry.entry_id)
 
diff --git a/homeassistant/components/nut/const.py b/homeassistant/components/nut/const.py
index ae960cc4325..98b6d22a830 100644
--- a/homeassistant/components/nut/const.py
+++ b/homeassistant/components/nut/const.py
@@ -10,6 +10,7 @@ DOMAIN = "nut"
 
 PLATFORMS = ["sensor"]
 
+UNDO_UPDATE_LISTENER = "undo_update_listener"
 
 DEFAULT_NAME = "NUT UPS"
 DEFAULT_HOST = "localhost"
diff --git a/homeassistant/components/nut/sensor.py b/homeassistant/components/nut/sensor.py
index 07abe27b426..32daaaa2582 100644
--- a/homeassistant/components/nut/sensor.py
+++ b/homeassistant/components/nut/sensor.py
@@ -57,7 +57,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
     """Import the platform into a config entry."""
 
     hass.async_create_task(