From 8876762f285fff08b1aefeba52c7157a2c9beec1 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Sep 2023 15:31:09 +0200 Subject: [PATCH] dmaengine: altera-msgdma: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Olivier Dautricourt Link: https://lore.kernel.org/r/20230919133207.1400430-2-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul --- drivers/dma/altera-msgdma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c index 4153c2edb049..a8e3615235b8 100644 --- a/drivers/dma/altera-msgdma.c +++ b/drivers/dma/altera-msgdma.c @@ -923,7 +923,7 @@ fail: * * Return: Always '0' */ -static int msgdma_remove(struct platform_device *pdev) +static void msgdma_remove(struct platform_device *pdev) { struct msgdma_device *mdev = platform_get_drvdata(pdev); @@ -933,8 +933,6 @@ static int msgdma_remove(struct platform_device *pdev) msgdma_dev_remove(mdev); dev_notice(&pdev->dev, "Altera mSGDMA driver removed\n"); - - return 0; } #ifdef CONFIG_OF @@ -952,7 +950,7 @@ static struct platform_driver msgdma_driver = { .of_match_table = of_match_ptr(msgdma_match), }, .probe = msgdma_probe, - .remove = msgdma_remove, + .remove_new = msgdma_remove, }; module_platform_driver(msgdma_driver); -- 2.50.1