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Fix exception when shutting down DSMR (#55441)

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* Fix exception when shutting down DSMR

* Update homeassistant/components/dsmr/sensor.py

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
This commit is contained in:
Erik Montnemery 2021-08-30 12:08:21 +02:00 committed by GitHub
parent 8faec3da8d
commit 7e9f8de7e0
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1 changed files with 9 additions and 2 deletions
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homeassistant/components/dsmr/sensor.py
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@ -25,7 +25,7 @@ from homeassistant.const import (
from homeassistant.core import CoreState, HomeAssistant, callback from homeassistant.core import CoreState, HomeAssistant, callback
from homeassistant.helpers import config_validation as cv from homeassistant.helpers import config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, StateType from homeassistant.helpers.typing import ConfigType, EventType, StateType
from homeassistant.util import Throttle from homeassistant.util import Throttle
from .const import ( from .const import (
@ -146,8 +146,15 @@ async def async_setup_entry(
if transport: if transport:
# Register listener to close transport on HA shutdown # Register listener to close transport on HA shutdown
@callback
def close_transport(_event: EventType) -> None:
"""Close the transport on HA shutdown."""
if not transport:
return
transport.close()
stop_listener = hass.bus.async_listen_once( stop_listener = hass.bus.async_listen_once(
EVENT_HOMEASSISTANT_STOP, transport.close EVENT_HOMEASSISTANT_STOP, close_transport
) )
# Wait for reader to close # Wait for reader to close