iio: light: rpr0521: Balance runtime pm + use pm_runtime_resume_and_get()

Calls to pm_runtime_put_noidle in probe() error path and remove() are
not match to any get() calls.

The runtime pm core protects against negative reference counts, so this
doesn't have any visible impact beyond confusing the reader.

Whilst here use pm_runtime_resume_and_get() to replace boilerplate.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210509113354.660190-11-jic23@kernel.org

diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c
index 7e332de..c2dd8a3 100644 (file)
--- a/drivers/iio/light/rpr0521.c
+++ b/drivers/iio/light/rpr0521.c
@@ -360,7 +360,7 @@ static int rpr0521_set_power_state(struct rpr0521_data *data, bool on,
         * both stay enabled until _suspend().
         */
        if (on) {
-               ret = pm_runtime_get_sync(&data->client->dev);
+               ret = pm_runtime_resume_and_get(&data->client->dev);
        } else {
                pm_runtime_mark_last_busy(&data->client->dev);
                ret = pm_runtime_put_autosuspend(&data->client->dev);
@@ -369,9 +369,6 @@ static int rpr0521_set_power_state(struct rpr0521_data *data, bool on,
                dev_err(&data->client->dev,
                        "Failed: rpr0521_set_power_state for %d, ret %d\n",
                        on, ret);
-               if (on)
-                       pm_runtime_put_noidle(&data->client->dev);
-
                return ret;
        }
 
@@ -1038,7 +1035,6 @@ static int rpr0521_probe(struct i2c_client *client,
 err_pm_disable:
        pm_runtime_disable(&client->dev);
        pm_runtime_set_suspended(&client->dev);
-       pm_runtime_put_noidle(&client->dev);
 err_poweroff:
        rpr0521_poweroff(data);
 
@@ -1053,7 +1049,6 @@ static int rpr0521_remove(struct i2c_client *client)
 
        pm_runtime_disable(&client->dev);
        pm_runtime_set_suspended(&client->dev);
-       pm_runtime_put_noidle(&client->dev);
 
        rpr0521_poweroff(iio_priv(indio_dev));