From patchwork Sun Mar 26 14:30:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13188318 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6A417C6FD1C for ; Sun, 26 Mar 2023 15:45:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dpRm193WzDCPXM8gN/WH8G1KA1PXavuqNBAWQoQ5kS8=; b=I1HYyRxW0lMZHT zDNlt4Jt1OjBn2bX+Bb7eLvlB71IQrNKSlrQ07sVrB1AtZLa09B0qz5HAnFxzgQF43dc1sfolDbX9 X3dwFr27Qp00J3Zq17C7Ey30rKGNDkAaU5a6xLkorCZxv6qJZrnwv+EeQ0G98wQp7j/d+K8yzURnH 3GizXsqX/imlYAgZ0scCQQFzanVZ3XQP1K+af+sLM2n7+mv5NvlLJEvmnt0T4A3CmsT6jfCnhh/7Q uaVObvwinMvrU9dxGKmJp2QHuUEWSsx0fNb1x0boz9Y6p9hENWgpuJbVe688VHz0e4eUDsIX+dUOY ikx+WUM4JfjH1f9SEJhQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pgSYW-008jWP-0I; Sun, 26 Mar 2023 15:45:16 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pgRQG-008YMZ-30 for linux-amlogic@lists.infradead.org; Sun, 26 Mar 2023 14:32:44 +0000 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 1pgRQ4-0007kr-D7; Sun, 26 Mar 2023 16:32:28 +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 1pgRQ3-006rYy-LC; Sun, 26 Mar 2023 16:32:27 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ2-0088U2-Ca; Sun, 26 Mar 2023 16:32:26 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Neil Armstrong , Hans Verkuil , Mauro Carvalho Chehab , Kevin Hilman Cc: Jerome Brunet , Martin Blumenstingl , linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 004/117] media: ao-cec-g12a: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:31 +0200 Message-Id: <20230326143224.572654-7-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> References: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2005; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=v1wYGsh94W2lZgFeQJwM78nPF+W6bmgfpxjhbc5mNVE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFZ71dphtajewDN9c9hG2KxI9Sc8tzx2SkZbo HDC3rcHxbKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWewAKCRCPgPtYfRL+ Tr6rCACJ5dd9wV3bKSu9kvblrZbNIhyIOzeYRxGMF/5SPdamElcP0qqsv960558Vb6Nz1qeTP3t EhZAqGmghQIP7sia/5v9oWXOQyCtaRoHecq7X+TdL2E1BmiGmGGAh4EWX4PS2etoZ0Cp6Llblr6 yucTSe3Anc9LELmrN5Kq1TCU8/Sxv3L0dGvLR2k+yppvduOlWsD3gZAVlwmRsbVDy7/+mqTu323 GEZb18L83DSZh3DWo8felBcyQVCd+jo/agxDgy7Q+nsBzOzoRjvzMgh6JUI1c8wWCPXvQhNDcwX 92epQ4KNdNKMDy/UhyqnQyHbQtSQgdIb6hS63u8u6hH03pPC 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-amlogic@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230326_073241_031898_DA04ABB4 X-CRM114-Status: GOOD ( 15.36 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.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 (mostly) ignored 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. 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: Martin Blumenstingl --- drivers/media/cec/platform/meson/ao-cec-g12a.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/cec/platform/meson/ao-cec-g12a.c b/drivers/media/cec/platform/meson/ao-cec-g12a.c index 68fe6d6a8178..51294b9b6cd5 100644 --- a/drivers/media/cec/platform/meson/ao-cec-g12a.c +++ b/drivers/media/cec/platform/meson/ao-cec-g12a.c @@ -744,7 +744,7 @@ static int meson_ao_cec_g12a_probe(struct platform_device *pdev) return ret; } -static int meson_ao_cec_g12a_remove(struct platform_device *pdev) +static void meson_ao_cec_g12a_remove(struct platform_device *pdev) { struct meson_ao_cec_g12a_device *ao_cec = platform_get_drvdata(pdev); @@ -753,8 +753,6 @@ static int meson_ao_cec_g12a_remove(struct platform_device *pdev) cec_notifier_cec_adap_unregister(ao_cec->notify, ao_cec->adap); cec_unregister_adapter(ao_cec->adap); - - return 0; } static const struct meson_ao_cec_g12a_data ao_cec_g12a_data = { @@ -780,7 +778,7 @@ MODULE_DEVICE_TABLE(of, meson_ao_cec_g12a_of_match); static struct platform_driver meson_ao_cec_g12a_driver = { .probe = meson_ao_cec_g12a_probe, - .remove = meson_ao_cec_g12a_remove, + .remove_new = meson_ao_cec_g12a_remove, .driver = { .name = "meson-ao-cec-g12a", .of_match_table = of_match_ptr(meson_ao_cec_g12a_of_match),