From patchwork Sun Mar 26 14:32:16 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: 13188265 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 90A00C761AF for ; Sun, 26 Mar 2023 14:34:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232556AbjCZOem (ORCPT ); Sun, 26 Mar 2023 10:34:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232142AbjCZOdM (ORCPT ); Sun, 26 Mar 2023 10:33:12 -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 CD0E26594 for ; Sun, 26 Mar 2023 07:33:01 -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 1pgRQS-0000Uf-44; Sun, 26 Mar 2023 16:32:52 +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 1pgRQQ-006rhR-7B; Sun, 26 Mar 2023 16:32:50 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQP-0088aq-7x; Sun, 26 Mar 2023 16:32:49 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Patrice Chotard , Sean Young , Mauro Carvalho Chehab Cc: linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 109/117] media: st_rc: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:32:16 +0200 Message-Id: <20230326143224.572654-112-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=1688; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=dilEHo9govXasHtT6jWDl0EFBpcoZnlFPvF1NoaXW08=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFdDqXno4N3eqHrFThAzYL2IsNFr1wOEudN0m 0xs9SPDsUWJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBXQwAKCRCPgPtYfRL+ TpNeB/0UFMgu71GFrUTtlRgTTOuMjbuLF+RRHNKO76bdSr9qPImRQ0CcLhjSrAmUBGkhRwhPWHC bpQ7RjazFWwPrbO0lUuFyX/bX9Jvl+Yo7vhGfadRsn21uN5gb/+au+OAFIdsqHx9RwxntqT65+j MN50OvFz9FcnG7HRvgNqEu7HRgw9MdUq8vazOzLszUsdzrVlveka3agPPuJ1sgbIigHYHu3QkIi n5g5LwzaRz4tSVfAik4FLjOXH1DWwqhCvPKOocrdIe57d1bUeD3liOLIRJziEEHcq6kdI4F4OUx SeNve2/BRB9NDkNYY8OsuIeXE+hF2EsYSoim6ifcy7RqctDa 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/rc/st_rc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/rc/st_rc.c b/drivers/media/rc/st_rc.c index 19e987a048cc..28477aa95563 100644 --- a/drivers/media/rc/st_rc.c +++ b/drivers/media/rc/st_rc.c @@ -194,7 +194,7 @@ static int st_rc_hardware_init(struct st_rc_device *dev) return 0; } -static int st_rc_remove(struct platform_device *pdev) +static void st_rc_remove(struct platform_device *pdev) { struct st_rc_device *rc_dev = platform_get_drvdata(pdev); @@ -202,7 +202,6 @@ static int st_rc_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, false); clk_disable_unprepare(rc_dev->sys_clock); rc_unregister_device(rc_dev->rdev); - return 0; } static int st_rc_open(struct rc_dev *rdev) @@ -408,7 +407,7 @@ static struct platform_driver st_rc_driver = { .pm = &st_rc_pm_ops, }, .probe = st_rc_probe, - .remove = st_rc_remove, + .remove_new = st_rc_remove, }; module_platform_driver(st_rc_driver);