5.15-stable review patch. If anyone has any objections, please let me know.
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From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit a129ac3555c0dca6f04ae404dc0f0790656587fb ]
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() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove callback to the void returning variant.
Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Link: https://lore.kernel.org/r/20230925095532.1984344-15-u.kleine-koenig@pengutro... Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Stable-dep-of: c9c0036c1990 ("soc: mediatek: mtk-devapc: Fix leaking IO map on driver remove") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/mediatek/mtk-devapc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-devapc.c b/drivers/soc/mediatek/mtk-devapc.c index 552726456fa2f..da075918424d3 100644 --- a/drivers/soc/mediatek/mtk-devapc.c +++ b/drivers/soc/mediatek/mtk-devapc.c @@ -285,18 +285,16 @@ static int mtk_devapc_probe(struct platform_device *pdev) return ret; }
-static int mtk_devapc_remove(struct platform_device *pdev) +static void mtk_devapc_remove(struct platform_device *pdev) { struct mtk_devapc_context *ctx = platform_get_drvdata(pdev);
stop_devapc(ctx); - - return 0; }
static struct platform_driver mtk_devapc_driver = { .probe = mtk_devapc_probe, - .remove = mtk_devapc_remove, + .remove_new = mtk_devapc_remove, .driver = { .name = "mtk-devapc", .of_match_table = mtk_devapc_dt_match,