misc: ad525x_dpot: Make ad_dpot_remove() return void

Up to now ad_dpot_remove() returns zero unconditionally. Make it return
void instead which makes it easier to see in the callers that there is
no error to handle.

Also the return value of i2c and spi remove callbacks is ignored anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211012153945.2651412-12-u.kleine-koenig@pengutronix.de
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/ad525x_dpot-i2c.c b/drivers/misc/ad525x_dpot-i2c.c
index bd869ec..0ee0c6d 100644 (file)
--- a/drivers/misc/ad525x_dpot-i2c.c
+++ b/drivers/misc/ad525x_dpot-i2c.c
@@ -69,7 +69,8 @@ static int ad_dpot_i2c_probe(struct i2c_client *client,
 
 static int ad_dpot_i2c_remove(struct i2c_client *client)
 {
-       return ad_dpot_remove(&client->dev);
+       ad_dpot_remove(&client->dev);
+       return 0;
 }
 
 static const struct i2c_device_id ad_dpot_id[] = {

diff --git a/drivers/misc/ad525x_dpot-spi.c b/drivers/misc/ad525x_dpot-spi.c
index aea931d..a9e75d8 100644 (file)
--- a/drivers/misc/ad525x_dpot-spi.c
+++ b/drivers/misc/ad525x_dpot-spi.c
@@ -92,7 +92,8 @@ static int ad_dpot_spi_probe(struct spi_device *spi)
 
 static int ad_dpot_spi_remove(struct spi_device *spi)
 {
-       return ad_dpot_remove(&spi->dev);
+       ad_dpot_remove(&spi->dev);
+       return 0;
 }
 
 static const struct spi_device_id ad_dpot_spi_id[] = {

diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 5d8f3f6..756ef69 100644 (file)
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -743,7 +743,7 @@ exit:
 }
 EXPORT_SYMBOL(ad_dpot_probe);
 
-int ad_dpot_remove(struct device *dev)
+void ad_dpot_remove(struct device *dev)
 {
        struct dpot_data *data = dev_get_drvdata(dev);
        int i;
@@ -753,8 +753,6 @@ int ad_dpot_remove(struct device *dev)
                        ad_dpot_remove_files(dev, data->feat, i);
 
        kfree(data);
-
-       return 0;
 }
 EXPORT_SYMBOL(ad_dpot_remove);
 

diff --git a/drivers/misc/ad525x_dpot.h b/drivers/misc/ad525x_dpot.h
index ee8dc9f..72a9d68 100644 (file)
--- a/drivers/misc/ad525x_dpot.h
+++ b/drivers/misc/ad525x_dpot.h
@@ -209,6 +209,6 @@ struct ad_dpot_bus_data {
 
 int ad_dpot_probe(struct device *dev, struct ad_dpot_bus_data *bdata,
                  unsigned long devid, const char *name);
-int ad_dpot_remove(struct device *dev);
+void ad_dpot_remove(struct device *dev);
 
 #endif