From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98AE0C77B7F for ; Fri, 12 May 2023 21:27:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240273AbjELV1x (ORCPT ); Fri, 12 May 2023 17:27:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239936AbjELV1t (ORCPT ); Fri, 12 May 2023 17:27:49 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CC4730E1 for ; Fri, 12 May 2023 14:27:44 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pxaIX-0005I4-Vj; Fri, 12 May 2023 23:27:34 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pxaIX-0033WV-8p; Fri, 12 May 2023 23:27:33 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pxaIW-003qi7-GE; Fri, 12 May 2023 23:27:32 +0200 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 10/19] can: janz-ican3: Convert to platform remove callback returning void Date: Fri, 12 May 2023 23:27:16 +0200 Message-Id: <20230512212725.143824-11-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230512212725.143824-1-u.kleine-koenig@pengutronix.de> References: <20230512212725.143824-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Developer-Signature: v=1; a=openpgp-sha256; l=1782; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=u/7hB2ddYCYrZL/WHa/iTR+BFlAMoSy/Fbr/1MkIrOg=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkXq8voDfzVjE7mQZlBJmh985TlNzbPgMsSp734 9WaeFtp9SeJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZF6vLwAKCRCPgPtYfRL+ Tpa5B/9CV8KNRLdlbx9P3tpkCXUoAp74+jbM4h0TCCpmPolScKUVv4sA2GOJ1Fpb36BuNKcMAc0 UnTrjoHfSd6P1NZ4FrAV7C4IPk62QEFBjBi4693ogYSC9eFvMJl1QmgYa3cr7gu2ukmffJv5Tk5 fe2fXVIMiAYsfc4HHg3PG2wOn18QN7j5Nyz63kzwWvjpOvnpegcpqLqeSASwHc6SqYL31uYoMtq aHxzo+RTe1h8wKx7uht8DflvqcmjkSK6FHWCX+WxdmNKmgF+B6dvnpYeQ15IVbAQ+VPkFe33r+V QR0572VPFNadVoQyshHAZZjq1qEjhsVyTzTaoeyOVnJFqu7W X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org 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 --- drivers/net/can/janz-ican3.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 0732a5092141..d048ea565b89 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -2023,7 +2023,7 @@ static int ican3_probe(struct platform_device *pdev) return ret; } -static int ican3_remove(struct platform_device *pdev) +static void ican3_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); struct ican3_dev *mod = netdev_priv(ndev); @@ -2042,8 +2042,6 @@ static int ican3_remove(struct platform_device *pdev) iounmap(mod->dpm); free_candev(ndev); - - return 0; } static struct platform_driver ican3_driver = { @@ -2051,7 +2049,7 @@ static struct platform_driver ican3_driver = { .name = DRV_NAME, }, .probe = ican3_probe, - .remove = ican3_remove, + .remove_new = ican3_remove, }; module_platform_driver(ican3_driver); -- 2.39.2