From patchwork Sun Mar 26 14:31:48 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: 13188268 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 414ABC74A5B for ; Sun, 26 Mar 2023 14:34:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232623AbjCZOep (ORCPT ); Sun, 26 Mar 2023 10:34:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32812 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232535AbjCZOdO (ORCPT ); Sun, 26 Mar 2023 10:33:14 -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 2BBE34EE1 for ; Sun, 26 Mar 2023 07:33:03 -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-0000Ao-H7; 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-006rf7-6S; 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 1pgRQJ-0088Z0-52; Sun, 26 Mar 2023 16:32:43 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Hans Verkuil , Paul Kocialkowski , Sakari Ailus , Maxime Ripard , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Christophe JAILLET Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 081/117] media: sun8i_a83t_mipi_csi2: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:48 +0200 Message-Id: <20230326143224.572654-84-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=2114; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=k9x8HzVlyO7nqBiHyTmH/ywca9Pw/7RppQDC+gh421I=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbmAbo3t/O7sXR98QYLqTmcRer9F9ZO1B245 G0ILVvnNlWJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW5gAKCRCPgPtYfRL+ Tl2jB/9BovhRmpZKHAU3NPpips1+iUG8LVAqyxsVRkanp+lGCOsrmCb9HFCEWuNFNzK+np/o+Tj rTxNTSg3yOLwjohHDTgTq8qhNVOX+j+QP8rB4tAu13wldgnfy5e/rZcZSrzzvj38qLi/low4452 gPfFPO9NIMAOBFHvyBbT+g40ib6zlqwenGkEGSmTQN49i+lqRUPRINUEetLC0+fLbIFuhljIs3t vn7HwQc3uCMRCioSaD4Ee8HPZ47PEkULKjFaBqVRSdvtJwK3Xiya/0LbqSTa0+OTGrNLfL1t+Ic CorzysVmLole6sZsFuAqD3S6I4K4g38P4Bss8SpHB16mmh3N 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 --- .../sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c b/drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c index cd2e92ae2293..23d32e198aaa 100644 --- a/drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c +++ b/drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c @@ -804,15 +804,13 @@ static int sun8i_a83t_mipi_csi2_probe(struct platform_device *platform_dev) return ret; } -static int sun8i_a83t_mipi_csi2_remove(struct platform_device *platform_dev) +static void sun8i_a83t_mipi_csi2_remove(struct platform_device *platform_dev) { struct sun8i_a83t_mipi_csi2_device *csi2_dev = platform_get_drvdata(platform_dev); sun8i_a83t_mipi_csi2_bridge_cleanup(csi2_dev); sun8i_a83t_mipi_csi2_resources_cleanup(csi2_dev); - - return 0; } static const struct of_device_id sun8i_a83t_mipi_csi2_of_match[] = { @@ -823,7 +821,7 @@ MODULE_DEVICE_TABLE(of, sun8i_a83t_mipi_csi2_of_match); static struct platform_driver sun8i_a83t_mipi_csi2_platform_driver = { .probe = sun8i_a83t_mipi_csi2_probe, - .remove = sun8i_a83t_mipi_csi2_remove, + .remove_new = sun8i_a83t_mipi_csi2_remove, .driver = { .name = SUN8I_A83T_MIPI_CSI2_NAME, .of_match_table = of_match_ptr(sun8i_a83t_mipi_csi2_of_match),