media: mtk_vpu: 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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/mediatek/vpu/mtk_vpu.c b/drivers/media/platform/mediatek/vpu/mtk_vpu.c
index 47b684b92f8174d943fc44dc839530b7a8c393fe..5e2bc286f168ea030c7a266dc5cca2450718bc5e 100644 (file)
--- a/drivers/media/platform/mediatek/vpu/mtk_vpu.c
+++ b/drivers/media/platform/mediatek/vpu/mtk_vpu.c
@@ -953,7 +953,7 @@ static const struct of_device_id mtk_vpu_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mtk_vpu_match);
 
-static int mtk_vpu_remove(struct platform_device *pdev)
+static void mtk_vpu_remove(struct platform_device *pdev)
 {
        struct mtk_vpu *vpu = platform_get_drvdata(pdev);
 
@@ -966,8 +966,6 @@ static int mtk_vpu_remove(struct platform_device *pdev)
        vpu_free_ext_mem(vpu, D_FW);
        mutex_destroy(&vpu->vpu_mutex);
        clk_unprepare(vpu->clk);
-
-       return 0;
 }
 
 static int mtk_vpu_suspend(struct device *dev)
@@ -1040,7 +1038,7 @@ static const struct dev_pm_ops mtk_vpu_pm = {
 
 static struct platform_driver mtk_vpu_driver = {
        .probe  = mtk_vpu_probe,
-       .remove = mtk_vpu_remove,
+       .remove_new = mtk_vpu_remove,
        .driver = {
                .name   = "mtk_vpu",
                .pm = &mtk_vpu_pm,