From patchwork Sun Mar 26 14:31:39 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: 13188185 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 2A2C7C74A5B for ; Sun, 26 Mar 2023 14:33:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232576AbjCZOdj (ORCPT ); Sun, 26 Mar 2023 10:33:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232463AbjCZOcv (ORCPT ); Sun, 26 Mar 2023 10:32:51 -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 E33247DA8 for ; Sun, 26 Mar 2023 07:32:49 -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 1pgRQL-00006I-EB; Sun, 26 Mar 2023 16:32:45 +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 1pgRQI-006reU-Ok; Sun, 26 Mar 2023 16:32:42 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQH-0088YT-4h; Sun, 26 Mar 2023 16:32:41 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Fabien Dessenne , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 072/117] media: bdisp-v4l2: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:39 +0200 Message-Id: <20230326143224.572654-75-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=1917; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=6oNpflcOfl1SzEjPbuYEUR09Hb2dlSPtdmiOhtCulig=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbc+I+q3kfUf8JJojWW18kLNbE1jeCcJcdsc wl+ohfs+ZKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW3AAKCRCPgPtYfRL+ Tl4HB/9ib9yNl+1dZIMR38U9WiJyCh6cNX6bd3eYEYJkW1skVMaurJQi6ph6s1KW2TLjkwlmJ/k XgRau5UdrltUMCtlKTh+of357GkB12cgVDY3awoHjiUyzAr4ond8bNzta4ZIVDTuOB0gtcrmI/A IgooRUgWNyOeC4IDEp755EO+CAPbQXs8tPY79gUOYfe2gTkYBzrndN9Hr0BeBl/ZDSNkmRGN67r zEUzZWK+uYrLCeO+1o9bT/Mt43PndRrnNKnHU2HEqAC9VED27mLXVw+RIc3K+BdGpa0viXGxePn 2FAfi7gpCAJpEV8c+aodrGwMnZdqT3vEedRgJ83etjcUfNCf 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/st/sti/bdisp/bdisp-v4l2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c index dd74cc43920d..4471b5c944ca 100644 --- a/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c +++ b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c @@ -1257,7 +1257,7 @@ static const struct dev_pm_ops bdisp_pm_ops = { .runtime_resume = bdisp_runtime_resume, }; -static int bdisp_remove(struct platform_device *pdev) +static void bdisp_remove(struct platform_device *pdev) { struct bdisp_dev *bdisp = platform_get_drvdata(pdev); @@ -1277,8 +1277,6 @@ static int bdisp_remove(struct platform_device *pdev) destroy_workqueue(bdisp->work_queue); dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); - - return 0; } static int bdisp_probe(struct platform_device *pdev) @@ -1411,7 +1409,7 @@ MODULE_DEVICE_TABLE(of, bdisp_match_types); static struct platform_driver bdisp_driver = { .probe = bdisp_probe, - .remove = bdisp_remove, + .remove_new = bdisp_remove, .driver = { .name = BDISP_NAME, .of_match_table = bdisp_match_types,