From patchwork Sun Mar 26 14:32:02 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: 667745 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 30244C74A5B for ; Sun, 26 Mar 2023 14:34:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232602AbjCZOec (ORCPT ); Sun, 26 Mar 2023 10:34:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232548AbjCZOdF (ORCPT ); Sun, 26 Mar 2023 10:33:05 -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 79D1765AB 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 1pgRQP-0000GD-Iz; Sun, 26 Mar 2023 16:32:49 +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 1pgRQM-006rg7-Qn; Sun, 26 Mar 2023 16:32:46 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQM-0088Zv-5E; Sun, 26 Mar 2023 16:32:46 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Hyun Kwon , Laurent Pinchart , Mauro Carvalho Chehab , Michal Simek Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 095/117] media: xilinx-csi2rxss: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:32:02 +0200 Message-Id: <20230326143224.572654-98-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=1953; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=FZR4BFA0Qk42KswnwMjnFUu/VtbyKPil5uHT81HsGo4=; b=owGbwMvMwMXY3/A7olbonx/jabUkhhSFsD+pFaoTc9sYO8RXXfovlvmVO688aFv8lRROFX+Nl Ok1l7I7GY1ZGBi5GGTFFFnsG9dkWlXJRXau/XcZZhArE8gUBi5OAZiIJiP7//hJoZW7y091sW6S jqyxmSJjPLnkEA8vTxcTd2V8xtTkatGvk7lfP7z1vYazt/uneoDolIv7c1ZPEWFIqSiJWJDLcCv E4Jv0ng9xXUbH09NmRZzxbvyRwrNVeZ5p2/bK/uJvHz7JaHoblu5YvlHKlqkw7xhLS/RNsSO2Oy 5N/6H6zflchqZ1xbO/8xY1yNVxqfu81dnzmu1QpHC28cTWk3WSma9EdRs6xS4+ms86n+/va6Pqt 7NmV2id9LYRXWNj4L0l7+7v0x0bMn8/ynSpDW6evPHKxrkrtxzflOc7NTAh0U5EPWiVY+GjWX+V bm9UMbHwjA/NmrtWQa7yzjzW1/LyDnnzqxq9d85JDXgPAA== 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/xilinx/xilinx-csi2rxss.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/xilinx/xilinx-csi2rxss.c b/drivers/media/platform/xilinx/xilinx-csi2rxss.c index d8a23f18cfbc..5b53745fe44e 100644 --- a/drivers/media/platform/xilinx/xilinx-csi2rxss.c +++ b/drivers/media/platform/xilinx/xilinx-csi2rxss.c @@ -1059,7 +1059,7 @@ static int xcsi2rxss_probe(struct platform_device *pdev) return ret; } -static int xcsi2rxss_remove(struct platform_device *pdev) +static void xcsi2rxss_remove(struct platform_device *pdev) { struct xcsi2rxss_state *xcsi2rxss = platform_get_drvdata(pdev); struct v4l2_subdev *subdev = &xcsi2rxss->subdev; @@ -1070,8 +1070,6 @@ static int xcsi2rxss_remove(struct platform_device *pdev) mutex_destroy(&xcsi2rxss->lock); clk_bulk_disable_unprepare(num_clks, xcsi2rxss->clks); clk_bulk_put(num_clks, xcsi2rxss->clks); - - return 0; } static const struct of_device_id xcsi2rxss_of_id_table[] = { @@ -1086,7 +1084,7 @@ static struct platform_driver xcsi2rxss_driver = { .of_match_table = xcsi2rxss_of_id_table, }, .probe = xcsi2rxss_probe, - .remove = xcsi2rxss_remove, + .remove_new = xcsi2rxss_remove, }; module_platform_driver(xcsi2rxss_driver);