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Commit 5440c40b authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Eduardo Valentin
Browse files

thermal: rcar: rcar_thermal_get_temp() return error if strange temp 



Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
parent ffbcdf8a

drivers/thermal/rcar_thermal.c

+11 −1
Original line number Diff line number Diff line
@@ -203,6 +203,7 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) 
static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)

{

	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);

	int tmp;

	int ret;



	ret = rcar_thermal_update_temp(priv);
@@ -210,9 +211,18 @@ static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp) 
		return ret;



	mutex_lock(&priv->lock);

	*temp =  MCELSIUS((priv->ctemp * 5) - 65);

	tmp =  MCELSIUS((priv->ctemp * 5) - 65);

	mutex_unlock(&priv->lock);



	if ((tmp < MCELSIUS(-45)) || (tmp > MCELSIUS(125))) {

		struct device *dev = rcar_priv_to_dev(priv);



		dev_err(dev, "it couldn't measure temperature correctly\n");

		return -EIO;

	}



	*temp = tmp;



	return 0;

}