From patchwork Sun Mar 26 14:30:28 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: 667798 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 82164C6FD1C for ; Sun, 26 Mar 2023 14:32:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232328AbjCZOce (ORCPT ); Sun, 26 Mar 2023 10:32:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59734 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229887AbjCZOcd (ORCPT ); Sun, 26 Mar 2023 10:32:33 -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 621786593 for ; Sun, 26 Mar 2023 07:32:31 -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 1pgRQ4-0007kk-15; Sun, 26 Mar 2023 16:32:28 +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 1pgRQ3-006rYt-AI; Sun, 26 Mar 2023 16:32:27 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ1-0088Tr-PT; Sun, 26 Mar 2023 16:32:25 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Hans Verkuil , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 002/117] media: cec-gpio: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:28 +0200 Message-Id: <20230326143224.572654-4-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=1762; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=CWo4O15bZJborxNexNwz9+q/5sIhuzdg9zysz4LyIFY=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFZ3TrjSxRt0uTHZxZVpndQyyHNG9EFU5z8jR rcEfnAQArWJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWdwAKCRCPgPtYfRL+ TgycB/42fhG74gGQo3G4/e1cfXQqHl5tBsdNRGHU7PpdrH3edCIcQbG+RnHsgo0KTt2Tb/cc9Tc qzN6dIw+Q49AtkCUP2kyn7WsMoij+s8nJFp4KFtVzt/rIWHZy+fpyFT7zmO925lCtsPB5S2FjxS SwhYQz1q+Ohnvo4h2pRpPNfNBSmmToawfoUo72ZpHk+iziZyy1Hd+Ifbol+CeZd5gtYDZhtlVHB 6vj3Ba8IMSHdK2RF8JwBJXtW3JwxG/vfSdHO0jRc832HnK5XrpWC/k/sifuxT7CnmYswI61mtOr 8QcGcu8HrnZCtekbnMPVs98mT0iLL+7MhjZKRxNYAuHqWeyS 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/cec/platform/cec-gpio/cec-gpio.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/cec/platform/cec-gpio/cec-gpio.c b/drivers/media/cec/platform/cec-gpio/cec-gpio.c index c8c4efc83f5f..ff34490fd869 100644 --- a/drivers/media/cec/platform/cec-gpio/cec-gpio.c +++ b/drivers/media/cec/platform/cec-gpio/cec-gpio.c @@ -269,13 +269,12 @@ static int cec_gpio_probe(struct platform_device *pdev) return ret; } -static int cec_gpio_remove(struct platform_device *pdev) +static void cec_gpio_remove(struct platform_device *pdev) { struct cec_gpio *cec = platform_get_drvdata(pdev); cec_notifier_cec_adap_unregister(cec->notifier, cec->adap); cec_unregister_adapter(cec->adap); - return 0; } static const struct of_device_id cec_gpio_match[] = { @@ -288,7 +287,7 @@ MODULE_DEVICE_TABLE(of, cec_gpio_match); static struct platform_driver cec_gpio_pdrv = { .probe = cec_gpio_probe, - .remove = cec_gpio_remove, + .remove_new = cec_gpio_remove, .driver = { .name = "cec-gpio", .of_match_table = cec_gpio_match,