From patchwork Sun Mar 26 14:31:15 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: 13188114 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 17D5FC74A5B for ; Sun, 26 Mar 2023 14:32:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232470AbjCZOcv (ORCPT ); Sun, 26 Mar 2023 10:32:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232452AbjCZOcs (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 7B0C4769A for ; Sun, 26 Mar 2023 07:32:47 -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-0008HU-Qh; 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-006rcU-BR; 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 1pgRQB-0088Wr-VA; Sun, 26 Mar 2023 16:32:35 +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 048/117] media: rcar-isp: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:15 +0200 Message-Id: <20230326143224.572654-51-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=1727; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=H9Xij91+DKvF0GTkIvcfnoR7RIAl5lpT4bjYw1+Gjos=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbAX2oI45PUtkLYtVUOoiHXyCd+iOyR7uw6+ ewMsqY0CamJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWwAAKCRCPgPtYfRL+ TtWhB/4oYTKCPZNvN/lgdaue4UPzzDUOjxMt3d4N6SW967pr66irUwiKHHrSVd76YQjKl30CEJq KFaShNOMfUtNEX+GA6pi7V3KK3Gpek0IMStW5BZVnXGCT2Xx14frztX8GdGn0+f5AkezqWh37Hd TUcCRGCBeSS22UXkFuDfsWjFvt6n4GrcNSflBRhH36XP4qt7IdMS2k6UlGdzxMBRY2beEFj9aDy NsdhapSuMhUmEg1fUNrvZ8qskfIMd1sUVYCmWzaZzZT3/EQFBVUrAlRF9fD6QOMyO0FFlUUZLUA LoSZI2O2M+vGg9UzkFz5+X2Yqa7KgiHsv0lKa7Pi+/Z66IC3 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-isp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/renesas/rcar-isp.c b/drivers/media/platform/renesas/rcar-isp.c index 10b3474f93a4..27fe71931a04 100644 --- a/drivers/media/platform/renesas/rcar-isp.c +++ b/drivers/media/platform/renesas/rcar-isp.c @@ -503,7 +503,7 @@ static int risp_probe(struct platform_device *pdev) return ret; } -static int risp_remove(struct platform_device *pdev) +static void risp_remove(struct platform_device *pdev) { struct rcar_isp *isp = platform_get_drvdata(pdev); @@ -515,8 +515,6 @@ static int risp_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); mutex_destroy(&isp->lock); - - return 0; } static struct platform_driver rcar_isp_driver = { @@ -525,7 +523,7 @@ static struct platform_driver rcar_isp_driver = { .of_match_table = risp_of_id_table, }, .probe = risp_probe, - .remove = risp_remove, + .remove_new = risp_remove, }; module_platform_driver(rcar_isp_driver);