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[2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id bj19-20020a056a02019300b005cdba90861asi11741551pgb.159.2023.12.27.08.29.32 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Dec 2023 08:29:32 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-12129-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-12129-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-12129-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id C25AFB2285F for ; Wed, 27 Dec 2023 16:28:21 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 83830481B3; Wed, 27 Dec 2023 16:26:57 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F3FD246433 for ; Wed, 27 Dec 2023 16:26:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de 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 1rIWk0-0005AX-5U; Wed, 27 Dec 2023 17:26:44 +0100 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 1rIWjy-001tZm-LQ; Wed, 27 Dec 2023 17:26:43 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rIWjz-001WnJ-29; Wed, 27 Dec 2023 17:26:43 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: =?utf-8?q?Marek_Beh=C3=BAn?= Cc: kernel@pengutronix.de, linux-kernel@vger.kernel.org Subject: [PATCH 10/11] firmware: turris-mox-rwtm: Convert to platform remove callback returning void Date: Wed, 27 Dec 2023 17:26:34 +0100 Message-ID: <9074d1ad2e889425991fecad664781ae27b2418a.1703693980.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2006; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=WEZQXXd5yEntU2Gt+f7/Gkh5GXx5rKG3A+0Dnwst0LE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBljFA9qk9zaKQX3LUk4LnI0Bgdn7cRxwonrs9nY Bwreka7G7iJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZYxQPQAKCRCPgPtYfRL+ TiYRCAChHvmLzvr6zrz7IyRAAX7lZidZ3ESfne2udN3JSW4mLtYdzEQ6YvEhfoWtA0osET5XGJj adYGI/CTr/MJDQAxQ+jkv+BRbPpEN6CCoJ2LuD9B7gL+tfWOhswYSx0i6QQVveeVOOKgo+kwksw gF6e5l1WR/p8iVc7sdSx7mYe6rrTRsgCr7Sk3cU4UrksOY7GZJNhq+4Scz7YrvYwl8qABoCE0c/ 9DeaGLUueTXrSSFQsWrC4IPZVIU+qxZSdAMGf8AAKvrrxwmj3IUwMPMrsXmQhWxkbM55Nz7TNYW dOKmgJ4t1gq2q54Qnwb9gC2QLgcW76fwYFL9l6/JeEvYOJof X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 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 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1786453240590644524 X-GMAIL-MSGID: 1786453240590644524 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-König Reviewed-by: Marek Behún --- drivers/firmware/turris-mox-rwtm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/turris-mox-rwtm.c b/drivers/firmware/turris-mox-rwtm.c index 2de0fb139ce1..31d962cdd6eb 100644 --- a/drivers/firmware/turris-mox-rwtm.c +++ b/drivers/firmware/turris-mox-rwtm.c @@ -554,7 +554,7 @@ static int turris_mox_rwtm_probe(struct platform_device *pdev) return ret; } -static int turris_mox_rwtm_remove(struct platform_device *pdev) +static void turris_mox_rwtm_remove(struct platform_device *pdev) { struct mox_rwtm *rwtm = platform_get_drvdata(pdev); @@ -562,8 +562,6 @@ static int turris_mox_rwtm_remove(struct platform_device *pdev) sysfs_remove_files(rwtm_to_kobj(rwtm), mox_rwtm_attrs); kobject_put(rwtm_to_kobj(rwtm)); mbox_free_channel(rwtm->mbox); - - return 0; } static const struct of_device_id turris_mox_rwtm_match[] = { @@ -576,7 +574,7 @@ MODULE_DEVICE_TABLE(of, turris_mox_rwtm_match); static struct platform_driver turris_mox_rwtm_driver = { .probe = turris_mox_rwtm_probe, - .remove = turris_mox_rwtm_remove, + .remove_new = turris_mox_rwtm_remove, .driver = { .name = DRIVER_NAME, .of_match_table = turris_mox_rwtm_match,