w1: omap_hdq: 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/f3a7eaee59020bf879249304eaaf9839c7e17222.1708340114.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 6a39b71eb7184e2a7f148cbe077904279273ba30..d1cb5190445a9035799c3879037ee0252bcfcd95 100644 (file)
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -647,7 +647,7 @@ err_w1:
        return ret;
 }
 
-static int omap_hdq_remove(struct platform_device *pdev)
+static void omap_hdq_remove(struct platform_device *pdev)
 {
        int active;
 
@@ -661,8 +661,6 @@ static int omap_hdq_remove(struct platform_device *pdev)
        if (active >= 0)
                pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-
-       return 0;
 }
 
 static const struct of_device_id omap_hdq_dt_ids[] = {
@@ -674,7 +672,7 @@ MODULE_DEVICE_TABLE(of, omap_hdq_dt_ids);
 
 static struct platform_driver omap_hdq_driver = {
        .probe = omap_hdq_probe,
-       .remove = omap_hdq_remove,
+       .remove_new = omap_hdq_remove,
        .driver = {
                .name = "omap_hdq",
                .of_match_table = omap_hdq_dt_ids,