From nobody Fri Sep 20 11:30:51 2024 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 0B178CE7A89 for ; Mon, 25 Sep 2023 09:58:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231130AbjIYJ6H (ORCPT ); Mon, 25 Sep 2023 05:58:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230442AbjIYJ4Y (ORCPT ); Mon, 25 Sep 2023 05:56:24 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 315931B3 for ; Mon, 25 Sep 2023 02:55:54 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qkiJV-0007m7-H5; Mon, 25 Sep 2023 11:55:37 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qkiJU-008pyn-IQ; Mon, 25 Sep 2023 11:55:36 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qkiJU-004dkc-97; Mon, 25 Sep 2023 11:55:36 +0200 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Joel Stanley Cc: Andrew Jeffery , Arnd Bergmann , Rob Herring , Zev Weiss , linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 04/40] soc/aspeed: aspeed-uart-routing: Convert to platform remove callback returning void Date: Mon, 25 Sep 2023 11:54:55 +0200 Message-Id: <20230925095532.1984344-5-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230925095532.1984344-1-u.kleine-koenig@pengutronix.de> References: <20230925095532.1984344-1-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=1943; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=Dp6z+QS6f+BYha8PjTOhguNb6MQfm1ovSiqKV9hX2h4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlEVhEDSuLBlvM8gieK9jXohUdapwIH+hiYb4hy aiG/QEwFEGJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZRFYRAAKCRCPgPtYfRL+ TlRbB/9A2LAHx8RySGAgbLbJ8MlzL2k1s7rTNPGGbJkPLkmNex9kVNnPPwajEiON0s8s7kTBAKC 1wD/b2E1kUJfaerSMsqbI0eLiRHfQZ8RrNiHt/U1/2mL1sZzE5lhb3qiVq4tfrL+KwX+hzV9Mdr sjOLm2OH6UluKyWV764xCygA01aJMnOTcCqHIZ8SaG/Vh44x755YDukvqAbcQ1ythtTxipk9+2S pbY5C/Es0/D6Vu9xNapnd2BJuqhUJdZzAz8UC89tbqnezgRBgN1cGEY7yA2lNvq1oBYb7LMIXg9 G10Ke9g15LerIWVCr6bhyew3OBir105Uex4voBQqUbQQ28M/ X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: quoted-printable 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.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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() will be 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-K=C3=B6nig Reviewed-by: Andrew Jeffery --- drivers/soc/aspeed/aspeed-uart-routing.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/soc/aspeed/aspeed-uart-routing.c b/drivers/soc/aspeed/= aspeed-uart-routing.c index 3a4c1f28cb34..a2195f062e01 100644 --- a/drivers/soc/aspeed/aspeed-uart-routing.c +++ b/drivers/soc/aspeed/aspeed-uart-routing.c @@ -565,14 +565,12 @@ static int aspeed_uart_routing_probe(struct platform_= device *pdev) return 0; } =20 -static int aspeed_uart_routing_remove(struct platform_device *pdev) +static void aspeed_uart_routing_remove(struct platform_device *pdev) { struct device *dev =3D &pdev->dev; struct aspeed_uart_routing *uart_routing =3D platform_get_drvdata(pdev); =20 sysfs_remove_group(&dev->kobj, uart_routing->attr_grp); - - return 0; } =20 static const struct of_device_id aspeed_uart_routing_table[] =3D { @@ -591,7 +589,7 @@ static struct platform_driver aspeed_uart_routing_drive= r =3D { .of_match_table =3D aspeed_uart_routing_table, }, .probe =3D aspeed_uart_routing_probe, - .remove =3D aspeed_uart_routing_remove, + .remove_new =3D aspeed_uart_routing_remove, }; =20 module_platform_driver(aspeed_uart_routing_driver); --=20 2.40.1