From patchwork Sun Mar 26 14:31:47 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: 13188257 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 F2A1BC74A5B for ; Sun, 26 Mar 2023 14:34:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232603AbjCZOef (ORCPT ); Sun, 26 Mar 2023 10:34:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232329AbjCZOdH (ORCPT ); Sun, 26 Mar 2023 10:33:07 -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 A4F4E6EA9 for ; Sun, 26 Mar 2023 07:32:58 -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 1pgRQN-0000AI-9o; Sun, 26 Mar 2023 16:32:47 +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 1pgRQK-006rf1-02; Sun, 26 Mar 2023 16:32:44 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQI-0088Yw-Tt; Sun, 26 Mar 2023 16:32:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Paul Kocialkowski , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 080/117] media: sun6i_mipi_csi2: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:47 +0200 Message-Id: <20230326143224.572654-83-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=2004; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=jQPDsQVruAOUtxy6LPdqmQOfAEZivBfr3gDXNDkVj/k=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFblvrLuiuS45ZAzXk6hDA5q01ywy1BMMtsGy f8VyU5LzueJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW5QAKCRCPgPtYfRL+ TuxtCACtTiMScCpHJoEnxcJ7bs2eib8WhF39+8QWG7QK02o8P9nG96sJYwrrUAG5eAokqmnKEHQ 5uLfu4JvzADkO2IoIEqYkLKnfzuNP2sDsLWv0RkzhI3ShyGStQzITC9tjhXS3It91CQGcOVWMCS PamUrYmkvrcg3hhGQ1V41QhPIcW6tjSKfLZv0Auna/kF8IOQuxXzwHr+xuGWSLirBgKu1gIgbCH AFk/B5q/Tf0rR5EWCiG1f/5l6hkdbPxD0H3j0+zxafi5DWoBKfbjoG6K8neind5Msq9G5saumz3 efKoHKp1A8VvuM2RzfTHLEz9uWELE7qb7/Qfa6CvBEjsjDfx 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-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@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 Acked-by: Jernej Skrabec --- .../media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c index a220ce849b41..dce130b4c9f6 100644 --- a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c +++ b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c @@ -737,15 +737,13 @@ static int sun6i_mipi_csi2_probe(struct platform_device *platform_dev) return ret; } -static int sun6i_mipi_csi2_remove(struct platform_device *platform_dev) +static void sun6i_mipi_csi2_remove(struct platform_device *platform_dev) { struct sun6i_mipi_csi2_device *csi2_dev = platform_get_drvdata(platform_dev); sun6i_mipi_csi2_bridge_cleanup(csi2_dev); sun6i_mipi_csi2_resources_cleanup(csi2_dev); - - return 0; } static const struct of_device_id sun6i_mipi_csi2_of_match[] = { @@ -756,7 +754,7 @@ MODULE_DEVICE_TABLE(of, sun6i_mipi_csi2_of_match); static struct platform_driver sun6i_mipi_csi2_platform_driver = { .probe = sun6i_mipi_csi2_probe, - .remove = sun6i_mipi_csi2_remove, + .remove_new = sun6i_mipi_csi2_remove, .driver = { .name = SUN6I_MIPI_CSI2_NAME, .of_match_table = of_match_ptr(sun6i_mipi_csi2_of_match),