pinctrl: tb10x: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231009083856.222030-15-u.kleine-koenig@pengutronix.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c
index ab49bd708969e723f53c72bcc27c6a20ec69e485..c3b76e6511acfc5548b7b6de9849682cf2efb1e1 100644 (file)
--- a/drivers/pinctrl/pinctrl-tb10x.c
+++ b/drivers/pinctrl/pinctrl-tb10x.c
@@ -804,13 +804,11 @@ fail:
        return ret;
 }
 
-static int tb10x_pinctrl_remove(struct platform_device *pdev)
+static void tb10x_pinctrl_remove(struct platform_device *pdev)
 {
        struct tb10x_pinctrl *state = platform_get_drvdata(pdev);
 
        mutex_destroy(&state->mutex);
-
-       return 0;
 }
 
 
@@ -822,7 +820,7 @@ MODULE_DEVICE_TABLE(of, tb10x_pinctrl_dt_ids);
 
 static struct platform_driver tb10x_pinctrl_pdrv = {
        .probe   = tb10x_pinctrl_probe,
-       .remove  = tb10x_pinctrl_remove,
+       .remove_new = tb10x_pinctrl_remove,
        .driver  = {
                .name  = "tb10x_pinctrl",
                .of_match_table = of_match_ptr(tb10x_pinctrl_dt_ids),