openwrtv4/target/linux/mediatek/patches/0012-thermal-remove-useless-call-to-thermal_zone_device_s.patch

From 41adcc8cf217dfb4b70c2da061e70034b3c9add0 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 13 May 2015 10:52:31 +0200
Subject: [PATCH 12/76] thermal: remove useless call to
 thermal_zone_device_set_polling

When the thermal zone has no get_temp callback then thermal_zone_device_register()
calls thermal_zone_device_set_polling() with a polling delay of 0. This
only cancels the poll_queue. Since the poll_queue hasn't been scheduled this
is a no-op. Remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
---
 drivers/thermal/thermal_core.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1571,9 +1571,6 @@ struct thermal_zone_device *thermal_zone
 
 	INIT_DELAYED_WORK(&(tz->poll_queue), thermal_zone_device_check);
 
-	if (!tz->ops->get_temp)
-		thermal_zone_device_set_polling(tz, 0);
-
 	thermal_zone_device_update(tz);
 
 	return tz;