From 5f09a5cbd14ae16e93866040fa44d930ff885650 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Mon, 8 Jun 2015 10:35:49 +0900
Subject: thermal: exynos: Disable the regulator on probe failure

During probe the regulator (if present) was enabled but not disabled in
case of failure. So an unsuccessful probe lead to enabling the
regulator which was actually not needed because the device was not
enabled.

Additionally each deferred probe lead to increase of regulator enable
count so it would not be effectively disabled during removal of the
device.

Test HW: Exynos4412 - Trats2 board

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 498d22f616f6 ("thermal: exynos: Support for TMU regulator defined at device tree")
Cc: <stable@vger.kernel.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 531f4b17..13c3ace 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1392,6 +1392,8 @@ err_clk_sec:
 	if (!IS_ERR(data->clk_sec))
 		clk_unprepare(data->clk_sec);
 err_sensor:
+	if (!IS_ERR_OR_NULL(data->regulator))
+		regulator_disable(data->regulator);
 	thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
 
 	return ret;
-- 
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