drm/bridge: dw-hdmi-cec: 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 (mostly) ignored
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.

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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230318190804.234610-16-u.kleine-koenig@pengutronix.de

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
index c8f44bcb298a3e792471b22494459816d1e036ee..9389ce526eb132d68e6b5096e7e4143983d1d97c 100644 (file)
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
@@ -296,19 +296,17 @@ static int dw_hdmi_cec_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int dw_hdmi_cec_remove(struct platform_device *pdev)
+static void dw_hdmi_cec_remove(struct platform_device *pdev)
 {
        struct dw_hdmi_cec *cec = platform_get_drvdata(pdev);
 
        cec_notifier_cec_adap_unregister(cec->notify, cec->adap);
        cec_unregister_adapter(cec->adap);
-
-       return 0;
 }
 
 static struct platform_driver dw_hdmi_cec_driver = {
        .probe  = dw_hdmi_cec_probe,
-       .remove = dw_hdmi_cec_remove,
+       .remove_new = dw_hdmi_cec_remove,
        .driver = {
                .name = "dw-hdmi-cec",
        },