[PATCH] hwmon: pwm-fan: Disable PWM if fetching cooling data fails

From: Stefan Wahren
Date: Wed Apr 03 2019 - 08:49:51 EST


In case pwm_fan_of_get_cooling_data() fails we should disable the PWM
just like in the other error cases.

Reported-by: Guenter Rock <linux@xxxxxxxxxxxx>
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Fixes: 2e5219c77183 ("hwmon: (pwm-fan) Read PWM FAN configuration from device tree")
Cc: <stable@xxxxxxxxxxxxxxx> # 4.14
---
drivers/hwmon/pwm-fan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 167221c..e4c5197 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -271,7 +271,7 @@ static int pwm_fan_probe(struct platform_device *pdev)

ret = pwm_fan_of_get_cooling_data(&pdev->dev, ctx);
if (ret)
- return ret;
+ goto err_pwm_disable;

ctx->pwm_fan_state = ctx->pwm_fan_max_state;
if (IS_ENABLED(CONFIG_THERMAL)) {
--
2.7.4