[PATCH 2/8 v2] thermal: rcar: check every rcar_thermal_update_temp() return value

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto...@renesas.com>

Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
v1 -> v2

 - new patch

 drivers/thermal/rcar_thermal.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 96707a6..4d1bc2b 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -210,8 +210,11 @@ static int rcar_thermal_get_temp(struct 
thermal_zone_device *zone, int *temp)
 {
        struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
 
-       if (!rcar_has_irq_support(priv) || rcar_force_update_temp(priv))
-               rcar_thermal_update_temp(priv);
+       if (!rcar_has_irq_support(priv) || rcar_force_update_temp(priv)) {
+               int ret = rcar_thermal_update_temp(priv);
+               if (ret < 0)
+                       return ret;
+       }
 
        mutex_lock(&priv->lock);
        *temp =  MCELSIUS((priv->ctemp * 5) - 65);
@@ -305,11 +308,15 @@ static void rcar_thermal_work(struct work_struct *work)
 {
        struct rcar_thermal_priv *priv;
        int cctemp, nctemp;
+       int ret;
 
        priv = container_of(work, struct rcar_thermal_priv, work.work);
 
        rcar_thermal_get_temp(priv->zone, &cctemp);
-       rcar_thermal_update_temp(priv);
+       ret = rcar_thermal_update_temp(priv);
+       if (ret < 0)
+               return;
+
        rcar_thermal_irq_enable(priv);
 
        rcar_thermal_get_temp(priv->zone, &nctemp);
@@ -447,7 +454,9 @@ static int rcar_thermal_probe(struct platform_device *pdev)
                mutex_init(&priv->lock);
                INIT_LIST_HEAD(&priv->list);
                INIT_DELAYED_WORK(&priv->work, rcar_thermal_work);
-               rcar_thermal_update_temp(priv);
+               ret = rcar_thermal_update_temp(priv);
+               if (ret < 0)
+                       goto error_unregister;
 
                priv->zone = thermal_zone_device_register("rcar_thermal",
                                                1, 0, priv,
-- 
1.9.1

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