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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id g20-20020a170906349400b00a1f89b2786esi6135326ejb.635.2023.12.15.06.04.02 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Dec 2023 06:04:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-1068-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-1068-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-1068-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 am.mirrors.kernel.org (Postfix) with ESMTPS id 2A8DE1F24951 for ; Fri, 15 Dec 2023 14:03:53 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 031233BB3F; Fri, 15 Dec 2023 13:59:45 +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 1C6E036AEC for ; Fri, 15 Dec 2023 13:59:41 +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 1rE8iv-0002lM-3E; Fri, 15 Dec 2023 14:59:29 +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 1rE8iu-00G2ZJ-5O; Fri, 15 Dec 2023 14:59:28 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1rE8it-003cC6-RU; Fri, 15 Dec 2023 14:59:27 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Will Deacon , Mark Rutland Cc: Jiucheng Xu , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/18] perf: amlogic: Convert to platform remove callback returning void Date: Fri, 15 Dec 2023 14:59:02 +0100 Message-ID: <33dbadf246eb323edd9e09ac744111216c167a55.1702648124.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0 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=1758; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=JQzThqbYJP0QqESsItg7VkQxjf7NhjUZgsGroMmrOZc=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlfFunAL8ycJpqtt6tJDjG+TMfdjLtm1rASeztS gl+kihZlRqJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZXxbpwAKCRCPgPtYfRL+ TohvCACm7G4Swx+T76FjE6UsHXXIG1J+cbT4v9Z3seGjq6SJJgxd/XZI+9sThyUM0hr75yQ+KpS jE0G6cKisaCLXR79HtR5VSEvyrG7PhR6WMmKdDI+pBmcfP5v3XQ69go7jN9lLOEt4oPYIU5iYbJ XunL0YeN0g0LeGgz9Gkk7FmM4LPwIyF+a2+3kHbrFww67ebezxwk5CWO6LQeMAc2NxnUJCLnW4z yZAIEt5KxjFywnR3E9IwFoq9d0jUKGig/POvSBV9AihktZICVmOoVYdMNZd0ET96RzGJUPBGs1x vrxU0Ykd14+Mfgv6oNbwZaIw96Aj6yDImRvhOCTpJyDXxOv8 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: 1785356922239968724 X-GMAIL-MSGID: 1785356922239968724 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 --- drivers/perf/amlogic/meson_g12_ddr_pmu.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/perf/amlogic/meson_g12_ddr_pmu.c b/drivers/perf/amlogic/meson_g12_ddr_pmu.c index 15d52ab3276a..99cc791892bc 100644 --- a/drivers/perf/amlogic/meson_g12_ddr_pmu.c +++ b/drivers/perf/amlogic/meson_g12_ddr_pmu.c @@ -355,11 +355,9 @@ static int g12_ddr_pmu_probe(struct platform_device *pdev) return meson_ddr_pmu_create(pdev); } -static int g12_ddr_pmu_remove(struct platform_device *pdev) +static void g12_ddr_pmu_remove(struct platform_device *pdev) { meson_ddr_pmu_remove(pdev); - - return 0; } static const struct of_device_id meson_ddr_pmu_dt_match[] = { @@ -381,7 +379,7 @@ MODULE_DEVICE_TABLE(of, meson_ddr_pmu_dt_match); static struct platform_driver g12_ddr_pmu_driver = { .probe = g12_ddr_pmu_probe, - .remove = g12_ddr_pmu_remove, + .remove_new = g12_ddr_pmu_remove, .driver = { .name = "meson-g12-ddr-pmu",