thermal: rcar_thermal: propagate return value of thermal_zone_device_register

thermal_zone_device_register returns a value contained in the pointer itself
use PTR_ERR to obtain the address and return it at the end.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index ab51814..2cc5b61 100644 (file)
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -364,6 +364,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
        struct resource *res, *irq;
        int mres = 0;
        int i;
+       int ret = -ENODEV;
        int idle = IDLE_INTERVAL;
 
        common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL);
@@ -438,6 +439,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
                                                idle);
                if (IS_ERR(priv->zone)) {
                        dev_err(dev, "can't register thermal zone\n");
+                       ret = PTR_ERR(priv->zone);
                        goto error_unregister;
                }
 
@@ -457,7 +459,7 @@ error_unregister:
        rcar_thermal_for_each_priv(priv, common)
                thermal_zone_device_unregister(priv->zone);
 
-       return -ENODEV;
+       return ret;
 }
 
 static int rcar_thermal_remove(struct platform_device *pdev)