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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 Paulus Schoutsen
parent 65ad99d51c
commit a474534c08
1 changed files with 9 additions and 2 deletions
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11
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.helpers import config_validation as cv
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 .const import (
@@ -146,8 +146,15 @@ async def async_setup_entry(
if transport:
# 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(
EVENT_HOMEASSISTANT_STOP, transport.close
EVENT_HOMEASSISTANT_STOP, close_transport
)
# Wait for reader to close