serial: max310x: Make max310x_remove() return void

Up to now max310x_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 spi remove callbacks is ignored anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211012153945.2651412-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 3df0788..dde0824 100644 (file)
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1426,7 +1426,7 @@ out_clk:
        return ret;
 }
 
-static int max310x_remove(struct device *dev)
+static void max310x_remove(struct device *dev)
 {
        struct max310x_port *s = dev_get_drvdata(dev);
        int i;
@@ -1441,8 +1441,6 @@ static int max310x_remove(struct device *dev)
        }
 
        clk_disable_unprepare(s->clk);
-
-       return 0;
 }
 
 static const struct of_device_id __maybe_unused max310x_dt_ids[] = {
@@ -1491,7 +1489,8 @@ static int max310x_spi_probe(struct spi_device *spi)
 
 static int max310x_spi_remove(struct spi_device *spi)
 {
-       return max310x_remove(&spi->dev);
+       max310x_remove(&spi->dev);
+       return 0;
 }
 
 static const struct spi_device_id max310x_id_table[] = {