From: Uwe Kleine-König Date: Tue, 19 Sep 2023 13:31:36 +0000 (+0200) Subject: dmaengine: mpc512x_dma: Convert to platform remove callback returning void X-Git-Tag: v6.7-rc1~73^2~78 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=80d0159bbe80d8de6f64c0a8554b4066c66eb378;p=thirdparty%2Fkernel%2Flinux.git dmaengine: mpc512x_dma: 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 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 Link: https://lore.kernel.org/r/20230919133207.1400430-29-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index 1104017320b88..68c247a46321c 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -1084,7 +1084,7 @@ err: return retval; } -static int mpc_dma_remove(struct platform_device *op) +static void mpc_dma_remove(struct platform_device *op) { struct device *dev = &op->dev; struct mpc_dma *mdma = dev_get_drvdata(dev); @@ -1099,8 +1099,6 @@ static int mpc_dma_remove(struct platform_device *op) free_irq(mdma->irq, mdma); irq_dispose_mapping(mdma->irq); tasklet_kill(&mdma->tasklet); - - return 0; } static const struct of_device_id mpc_dma_match[] = { @@ -1112,7 +1110,7 @@ MODULE_DEVICE_TABLE(of, mpc_dma_match); static struct platform_driver mpc_dma_driver = { .probe = mpc_dma_probe, - .remove = mpc_dma_remove, + .remove_new = mpc_dma_remove, .driver = { .name = DRV_NAME, .of_match_table = mpc_dma_match,