Hi,

On 10-03-16 10:34, Sascha Hauer wrote:
On Wed, Mar 09, 2016 at 01:35:27PM -0800, Eduardo Valentin wrote:
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the  local points and unregister calls.

Cc: Dmitry Torokhov <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Chen-Yu Tsai <[email protected]>
Cc: Hans de Goede <[email protected]>
Cc: Zhang Rui <[email protected]>
Cc: Lukasz Majewski <[email protected]>
Cc: Heiko Stuebner <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Jens Thiele <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Eduardo Valentin <[email protected]>
---
  drivers/input/touchscreen/sun4i-ts.c | 9 +--------
  1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/input/touchscreen/sun4i-ts.c 
b/drivers/input/touchscreen/sun4i-ts.c
index 4857943..d07dd29 100644
--- a/drivers/input/touchscreen/sun4i-ts.c
+++ b/drivers/input/touchscreen/sun4i-ts.c
@@ -115,7 +115,6 @@
  struct sun4i_ts_data {
        struct device *dev;
        struct input_dev *input;
-       struct thermal_zone_device *tz;
        void __iomem *base;
        unsigned int irq;
        bool ignore_fifo_data;
@@ -366,10 +365,7 @@ static int sun4i_ts_probe(struct platform_device *pdev)
        if (IS_ERR(hwmon))
                return PTR_ERR(hwmon);

-       ts->tz = thermal_zone_of_sensor_register(ts->dev, 0, ts,
-                                                &sun4i_ts_tz_ops);
-       if (IS_ERR(ts->tz))
-               ts->tz = NULL;
+       devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops);

Shouldn't we check the return value? There are a few possibilities for
thermal_zone_of_sensor_register to fail.

Note thee old code also was not checking this, it was simply continuing
without having registered a tz-sensor.

I guess we could log an error in that case, but that should be done in a
seperate follow-up patch.

The current patch looks good to me:

Acked-by: Hans de Goede <[email protected]>

Regards,

Hans

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