From patchwork Sun Mar 26 14:31:16 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: 13188113 X-Patchwork-Delegate: kieran@bingham.xyz 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 E3197C77B6C for ; Sun, 26 Mar 2023 14:32:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232453AbjCZOcv (ORCPT ); Sun, 26 Mar 2023 10:32:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232449AbjCZOcs (ORCPT ); Sun, 26 Mar 2023 10:32:48 -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 0EFC57DAD for ; Sun, 26 Mar 2023 07:32:46 -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 1pgRQF-0008HV-O5; Sun, 26 Mar 2023 16:32:39 +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 1pgRQD-006rcW-Cb; Sun, 26 Mar 2023 16:32:37 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQC-0088Wu-5A; Sun, 26 Mar 2023 16:32:36 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: =?utf-8?q?Niklas_S=C3=B6derlund?= , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 049/117] media: rcar-core: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:16 +0200 Message-Id: <20230326143224.572654-52-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=1821; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=95eFlYcFS5rE4SExkOimIwf5tFvBzgFzhyqxLBhy9Is=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbBootwkPzYp0dHDwnmM9s0TK9ambTS6fbVT hrfQtVEAdqJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWwQAKCRCPgPtYfRL+ TgkLCACYFPdUV7Ap/CvPFrD8z760nwgR3D2L+LvXZNMGzegLv32zNlO9WyFvfWhKBQG2afZ0JO9 Tz+J57MkWsmBTkE6wca4F7C0/QD42QOgxgas5x2kEmqHEJN3w7SXh36MqhpmjBPMLX7gMJBI0sw eat1X53sN3E/ij0SB1Tqc29QGFNXC8Dup9lxDxQxAM2BxlxjsxAVfOls2+GUZRxDjZBM1i1QptU w7/yZBARxmEHX/ElLEdlkOuJnsHVuyUHNeTr8g4g47Wlk7mxeG3sbCRNeAJ9o+0NKO+uLQqD2w9 JnnOSp1sqoKhF8Pqk8KW4fGPh4ae7QX/Y78K/9+JxZBppvGd 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-renesas-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@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 (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: Geert Uytterhoeven Reviewed-by: Niklas Söderlund --- drivers/media/platform/renesas/rcar-vin/rcar-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c b/drivers/media/platform/renesas/rcar-vin/rcar-core.c index 5e53d6b7036c..1398f147e5c2 100644 --- a/drivers/media/platform/renesas/rcar-vin/rcar-core.c +++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c @@ -1442,7 +1442,7 @@ static int rcar_vin_probe(struct platform_device *pdev) return 0; } -static int rcar_vin_remove(struct platform_device *pdev) +static void rcar_vin_remove(struct platform_device *pdev) { struct rvin_dev *vin = platform_get_drvdata(pdev); @@ -1458,8 +1458,6 @@ static int rcar_vin_remove(struct platform_device *pdev) rvin_parallel_cleanup(vin); rvin_dma_unregister(vin); - - return 0; } static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume); @@ -1472,7 +1470,7 @@ static struct platform_driver rcar_vin_driver = { .of_match_table = rvin_of_id_table, }, .probe = rcar_vin_probe, - .remove = rcar_vin_remove, + .remove_new = rcar_vin_remove, }; module_platform_driver(rcar_vin_driver);