From 2d0c06fd39be2edb222dafa3aeb51770fca45263 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Mon, 4 Dec 2023 19:30:45 +0100 Subject: net: wan/fsl_ucc_hdlc: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Link: https://lore.kernel.org/r/20231117095922.876489-7-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/8c9ffca75ea24810f9ba05a514d5ad59847cc4fe.1701713943.git.u.kleine-koenig@pengutronix.de Signed-off-by: Jakub Kicinski --- drivers/net/wan/fsl_ucc_hdlc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index fd50bb313b92..605e70f7baac 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -1259,7 +1259,7 @@ free_uhdlc_priv: return ret; } -static int ucc_hdlc_remove(struct platform_device *pdev) +static void ucc_hdlc_remove(struct platform_device *pdev) { struct ucc_hdlc_private *priv = dev_get_drvdata(&pdev->dev); @@ -1277,8 +1277,6 @@ static int ucc_hdlc_remove(struct platform_device *pdev) kfree(priv); dev_info(&pdev->dev, "UCC based hdlc module removed\n"); - - return 0; } static const struct of_device_id fsl_ucc_hdlc_of_match[] = { @@ -1292,7 +1290,7 @@ MODULE_DEVICE_TABLE(of, fsl_ucc_hdlc_of_match); static struct platform_driver ucc_hdlc_driver = { .probe = ucc_hdlc_probe, - .remove = ucc_hdlc_remove, + .remove_new = ucc_hdlc_remove, .driver = { .name = DRV_NAME, .pm = HDLC_PM_OPS, -- cgit v1.2.3