Use start helper in squeezebox for server discovery (#115978)

homeassistant/components/squeezebox/media_player.py

@@ -28,7 +28,6 @@
     CONF_PASSWORD,
     CONF_PORT,
     CONF_USERNAME,
-    EVENT_HOMEASSISTANT_START,
 )
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import (
@@ -44,6 +43,7 @@
 )
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_call_later
+from homeassistant.helpers.start import async_at_start
 from homeassistant.util.dt import utcnow
 
 from .browse_media import (
@@ -207,12 +207,7 @@ async def _discovered_player(player):
     platform.async_register_entity_service(SERVICE_UNSYNC, None, "async_unsync")
 
     # Start server discovery task if not already running
-    if hass.is_running:
-        hass.async_create_task(start_server_discovery(hass))
-    else:
-        hass.bus.async_listen_once(
-            EVENT_HOMEASSISTANT_START, start_server_discovery(hass)
-        )
+    config_entry.async_on_unload(async_at_start(hass, start_server_discovery))
 
 
 class SqueezeBoxEntity(MediaPlayerEntity):