drm/bridge: nwl-dsi: 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/20230318190804.234610-13-u.kleine-koenig@pengutronix.de

diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c
index 6dc2a4e..4a5f5c4 100644 (file)
--- a/drivers/gpu/drm/bridge/nwl-dsi.c
+++ b/drivers/gpu/drm/bridge/nwl-dsi.c
@@ -1199,7 +1199,7 @@ static int nwl_dsi_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int nwl_dsi_remove(struct platform_device *pdev)
+static void nwl_dsi_remove(struct platform_device *pdev)
 {
        struct nwl_dsi *dsi = platform_get_drvdata(pdev);
 
@@ -1207,12 +1207,11 @@ static int nwl_dsi_remove(struct platform_device *pdev)
        mipi_dsi_host_unregister(&dsi->dsi_host);
        drm_bridge_remove(&dsi->bridge);
        pm_runtime_disable(&pdev->dev);
-       return 0;
 }
 
 static struct platform_driver nwl_dsi_driver = {
        .probe          = nwl_dsi_probe,
-       .remove         = nwl_dsi_remove,
+       .remove_new     = nwl_dsi_remove,
        .driver         = {
                .of_match_table = nwl_dsi_dt_ids,
                .name   = DRV_NAME,