From patchwork Sun Mar 26 14:31:05 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: 667303 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 69D1EC6FD1C for ; Sun, 26 Mar 2023 14:33:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232435AbjCZOd1 (ORCPT ); Sun, 26 Mar 2023 10:33:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232406AbjCZOcr (ORCPT ); Sun, 26 Mar 2023 10:32:47 -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 EEC527ABF for ; Sun, 26 Mar 2023 07:32:45 -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 1pgRQD-000852-3S; Sun, 26 Mar 2023 16:32:37 +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 1pgRQA-006rbi-Ml; Sun, 26 Mar 2023 16:32:34 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ9-0088WC-Oi; Sun, 26 Mar 2023 16:32:33 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Rui Miguel Silva , Laurent Pinchart , Mauro Carvalho Chehab , Shawn Guo , Sascha Hauer Cc: Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 038/117] media: imx-mipi-csis: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:05 +0200 Message-Id: <20230326143224.572654-41-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=1943; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=g9vpE9AZ9skiilxNFIWrdmlq9kjJ2H01iBx38QX6sjM=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFa0ZmH/OORjShWZ6729b1/os/FQJ7mcBVvHa TixsF4hCD+JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWtAAKCRCPgPtYfRL+ TqI/B/9sOhnR0PJ8q+h1kKuiOTesOhoJzFkzg2yMAVElAtctGh5I3d3Crgu9Hu3dAIcLhKtrT3H DRSBa5kXyKKLMkCKmPre23JpE4zHLvNS3GCaT2c4JXMsj1gPe0ku/y1iSo0ptobDmv8XRsEvlS7 IX+Po4xY56NPmGfyUSxh0x3Mwr7mq5C2DM/Ii/gqjNvxtihGAWjN/XXNOqSkK60Owp6Z1QNyc3A gD7S4VG2vuyJNYaCtAHj1s5G/4jLVrGfeQfhmXpQ50k3i2sPJYnvRfxInZjTgSk8LFqBogulQrs LUnz/74mHB5YbWXJTJ+ZblpQCyPCqQ3sHmfK+hIVn3IEs9ap 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 --- drivers/media/platform/nxp/imx-mipi-csis.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/nxp/imx-mipi-csis.c b/drivers/media/platform/nxp/imx-mipi-csis.c index be2768a47995..05d52762e792 100644 --- a/drivers/media/platform/nxp/imx-mipi-csis.c +++ b/drivers/media/platform/nxp/imx-mipi-csis.c @@ -1503,7 +1503,7 @@ static int mipi_csis_probe(struct platform_device *pdev) return ret; } -static int mipi_csis_remove(struct platform_device *pdev) +static void mipi_csis_remove(struct platform_device *pdev) { struct v4l2_subdev *sd = platform_get_drvdata(pdev); struct mipi_csis_device *csis = sd_to_mipi_csis_device(sd); @@ -1520,8 +1520,6 @@ static int mipi_csis_remove(struct platform_device *pdev) media_entity_cleanup(&csis->sd.entity); fwnode_handle_put(csis->sd.fwnode); pm_runtime_set_suspended(&pdev->dev); - - return 0; } static const struct of_device_id mipi_csis_of_match[] = { @@ -1544,7 +1542,7 @@ MODULE_DEVICE_TABLE(of, mipi_csis_of_match); static struct platform_driver mipi_csis_driver = { .probe = mipi_csis_probe, - .remove = mipi_csis_remove, + .remove_new = mipi_csis_remove, .driver = { .of_match_table = mipi_csis_of_match, .name = CSIS_DRIVER_NAME,