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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2015-06-08 10:35:49 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-16 20:52:25 -0700
commit00d707ae64f062c2c4b488c76306278a1298557a (patch)
parent1770acb5356360a373c58835a8d1e786506a3f76 (diff)
thermal: exynos: Disable the regulator on probe failure
commit 5f09a5cbd14ae16e93866040fa44d930ff885650 upstream. 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") 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 1d30b0975651..67098a8a7a02 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1209,6 +1209,8 @@ err_clk_sec:
if (!IS_ERR(data->clk_sec))
+ if (!IS_ERR_OR_NULL(data->regulator))
+ regulator_disable(data->regulator);
thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
return ret;