From patchwork Sun Mar 26 14:30:30 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: 667787 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 D789FC74A5B for ; Sun, 26 Mar 2023 14:33:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232519AbjCZOc7 (ORCPT ); Sun, 26 Mar 2023 10:32:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232384AbjCZOch (ORCPT ); Sun, 26 Mar 2023 10:32:37 -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 373686593 for ; Sun, 26 Mar 2023 07:32:36 -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 1pgRQ3-0007kj-TF; Sun, 26 Mar 2023 16:32:27 +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 1pgRQ3-006rYp-3e; 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 1pgRQ2-0088Ty-6C; Sun, 26 Mar 2023 16:32:26 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Hans Verkuil , Mauro Carvalho Chehab , Benson Leung , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Scott Chao , Rory Liu , Ajye Huang Cc: Guenter Roeck , linux-media@vger.kernel.org, chrome-platform@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 003/117] media: cros-ec-cec: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:30 +0200 Message-Id: <20230326143224.572654-6-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=1824; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=7R9wKQxWA44fiXMEYARiwDyElWOf/YQkKOdlXBlMzbk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFZ58QDpXlzM0zNEkr6TWGtNeAotmE8ENdA8i +nW33qtuOqJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWeQAKCRCPgPtYfRL+ TppCB/93wZB5ZjDqzIYqffIxt9i6KyyUwipLcXNpswTw47lIhAn5FcKeus4st6tmtZ9gC57A0PS YBGYErj+uD/ZpXkqx+WV8d6Kg8ZdVtdHQT2UJ0oWq7sYZQ5sLUkMiTZpjMTExnDnDQm6UAAdKg2 lsgaq8WvIB1Yx673JBmi/3wfpiOgj6+QafjuBatj9RAIBua1ZEvwp283bA148WxMLjXQKN3n2wA q9iTk9wW6eprs/tlMK9uaLI7sv/IvzqWOueE2Oi2EKEIYzCA8iTG67jNlMMOCOb9WB7ywTIDqO1 x05Bd/N2YZ6DxAgWKoCkhP9CtAHzyI7U270VeZaO15g1WaO1 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/cros-ec/cros-ec-cec.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c index 960432230bbf..3d2600af9fc1 100644 --- a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c +++ b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c @@ -326,7 +326,7 @@ static int cros_ec_cec_probe(struct platform_device *pdev) return ret; } -static int cros_ec_cec_remove(struct platform_device *pdev) +static void cros_ec_cec_remove(struct platform_device *pdev) { struct cros_ec_cec *cros_ec_cec = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; @@ -346,13 +346,11 @@ static int cros_ec_cec_remove(struct platform_device *pdev) cec_notifier_cec_adap_unregister(cros_ec_cec->notify, cros_ec_cec->adap); cec_unregister_adapter(cros_ec_cec->adap); - - return 0; } static struct platform_driver cros_ec_cec_driver = { .probe = cros_ec_cec_probe, - .remove = cros_ec_cec_remove, + .remove_new = cros_ec_cec_remove, .driver = { .name = DRV_NAME, .pm = &cros_ec_cec_pm_ops,