usb: chipidea/ci_hdrc_msm: 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() is
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/20230517230239.187727-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index 46105457e1caaee8aa723729a9f3b070caad62d5..7b5b47ce8a0276eb0e9de4bba51608dd5aef3eb1 100644 (file)
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -274,7 +274,7 @@ err_iface:
        return ret;
 }
 
-static int ci_hdrc_msm_remove(struct platform_device *pdev)
+static void ci_hdrc_msm_remove(struct platform_device *pdev)
 {
        struct ci_hdrc_msm *ci = platform_get_drvdata(pdev);
 
@@ -282,8 +282,6 @@ static int ci_hdrc_msm_remove(struct platform_device *pdev)
        ci_hdrc_remove_device(ci->ci);
        clk_disable_unprepare(ci->iface_clk);
        clk_disable_unprepare(ci->core_clk);
-
-       return 0;
 }
 
 static const struct of_device_id msm_ci_dt_match[] = {
@@ -294,7 +292,7 @@ MODULE_DEVICE_TABLE(of, msm_ci_dt_match);
 
 static struct platform_driver ci_hdrc_msm_driver = {
        .probe = ci_hdrc_msm_probe,
-       .remove = ci_hdrc_msm_remove,
+       .remove_new = ci_hdrc_msm_remove,
        .driver = {
                .name = "msm_hsusb",
                .of_match_table = msm_ci_dt_match,