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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-08-01 14:02:34 +0300
committerChun-Kuang Hu <chunkuang.hu@kernel.org>2023-08-11 02:41:55 +0300
commitb3af12a0b46888340e024ba8b231605bcf2d0ab3 (patch)
treece35217ba5229b8cdffbbff64b5e999b5c9cebb3 /drivers/gpu/drm/mediatek/mtk_dp.c
parent61a97dec5f432cf33e4ac7460b9e02abf031f2c1 (diff)
downloadlinux-b3af12a0b46888340e024ba8b231605bcf2d0ab3.tar.xz
drm/mediatek: 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 the mediatek drm drivers from always returning zero in the remove callback to the void returning variant. Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20230801110239.831099-8-u.kleine-koenig@pengutronix.de/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_dp.c')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_dp.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index c06fcc7318e7..2cb47f663756 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -2694,7 +2694,7 @@ static int mtk_dp_probe(struct platform_device *pdev)
return 0;
}
-static int mtk_dp_remove(struct platform_device *pdev)
+static void mtk_dp_remove(struct platform_device *pdev)
{
struct mtk_dp *mtk_dp = platform_get_drvdata(pdev);
@@ -2705,8 +2705,6 @@ static int mtk_dp_remove(struct platform_device *pdev)
platform_device_unregister(mtk_dp->phy_dev);
if (mtk_dp->audio_pdev)
platform_device_unregister(mtk_dp->audio_pdev);
-
- return 0;
}
#ifdef CONFIG_PM_SLEEP
@@ -2767,7 +2765,7 @@ MODULE_DEVICE_TABLE(of, mtk_dp_of_match);
static struct platform_driver mtk_dp_driver = {
.probe = mtk_dp_probe,
- .remove = mtk_dp_remove,
+ .remove_new = mtk_dp_remove,
.driver = {
.name = "mediatek-drm-dp",
.of_match_table = mtk_dp_of_match,