From patchwork Sun Mar 26 14:30:38 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: 667321 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 3EC43C761AF for ; Sun, 26 Mar 2023 14:32:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232403AbjCZOcn (ORCPT ); Sun, 26 Mar 2023 10:32:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232358AbjCZOcf (ORCPT ); Sun, 26 Mar 2023 10:32:35 -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 02BBB6593 for ; Sun, 26 Mar 2023 07:32:34 -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 1pgRQ6-0007mb-5d; Sun, 26 Mar 2023 16:32:30 +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 1pgRQ4-006rZX-QR; Sun, 26 Mar 2023 16:32:28 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ3-0088US-VS; Sun, 26 Mar 2023 16:32:27 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Antti Palosaari , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 011/117] media: rtl2832_sdr: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:38 +0200 Message-Id: <20230326143224.572654-14-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=1862; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=vE13OBywjSGQAtKRy9vyU6KCfvR9dbYK8EQyoIjKxyI=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFaDpef24v6GE3tEtLjcZf2O1ymSm5hVdjig3 iTbH3k7UkuJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWgwAKCRCPgPtYfRL+ TvXLCACmYC/R1fl7aaM51Fj6pO+D/1fUAWu1Kk0JgBxYe6/fsLbY7k7flAF094PI2DaxXcvR51d CA1a+30ylC+ZTkEcvXm+5mxlH2SCMWavlctSXaFBBg7HAr581H30PymT+wUJZNasWDTP9BdEZY3 eLLEAkWobTMIVv5EQpLP7lOoK+34oEQyRVd41MDsJ0JUCEFTAz6CdN/4Uj6gdC0pW8GmFvvZqeJ wKhoap29YMvn+GI7h/QHKTThsOxH8NjM/w8qbEAVgH+lReReftjxYJOpnuAscGsH7rn5Kk/3eWH 64XettA7uZtwIeoOtO+U/5KSBWdV92GrIpcFPCtrIFhxwRho 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/dvb-frontends/rtl2832_sdr.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index 05f71d169726..02c619e51641 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -1463,7 +1463,7 @@ static int rtl2832_sdr_probe(struct platform_device *pdev) return ret; } -static int rtl2832_sdr_remove(struct platform_device *pdev) +static void rtl2832_sdr_remove(struct platform_device *pdev) { struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev); @@ -1479,8 +1479,6 @@ static int rtl2832_sdr_remove(struct platform_device *pdev) mutex_unlock(&dev->vb_queue_lock); v4l2_device_put(&dev->v4l2_dev); module_put(pdev->dev.parent->driver->owner); - - return 0; } static struct platform_driver rtl2832_sdr_driver = { @@ -1488,7 +1486,7 @@ static struct platform_driver rtl2832_sdr_driver = { .name = "rtl2832_sdr", }, .probe = rtl2832_sdr_probe, - .remove = rtl2832_sdr_remove, + .remove_new = rtl2832_sdr_remove, }; module_platform_driver(rtl2832_sdr_driver);