From patchwork Wed Mar 8 07:39:43 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: 660583 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 E221BC74A5B for ; Wed, 8 Mar 2023 07:40:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229958AbjCHHkq (ORCPT ); Wed, 8 Mar 2023 02:40:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229925AbjCHHkm (ORCPT ); Wed, 8 Mar 2023 02:40:42 -0500 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 E4CE4A7AB5 for ; Tue, 7 Mar 2023 23:40:02 -0800 (PST) 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 1pZoOv-0007TJ-MZ; Wed, 08 Mar 2023 08:39:53 +0100 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 1pZoOv-002fIw-2G; Wed, 08 Mar 2023 08:39:53 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pZoOt-003EMV-QJ; Wed, 08 Mar 2023 08:39:51 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Andy Gross , Bjorn Andersson , Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Cc: Konrad Dybcio , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 11/13] backlight: qcom-wled: Convert to platform remove callback returning void Date: Wed, 8 Mar 2023 08:39:43 +0100 Message-Id: <20230308073945.2336302-12-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230308073945.2336302-1-u.kleine-koenig@pengutronix.de> References: <20230308073945.2336302-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1792; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=uTuv8XDiycPiT9C588adO7M01bjKT+IKKoNN7QKnBsM=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkCDu1+UvTE6oyO8GG7OvnkiB95CzIrtQ81YjwJ 19J/W/9t2OJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAg7tQAKCRDB/BR4rcrs CWHrB/9hkoIByU6wvnvoc+/S3xSkGUKcnP+2y4EYm4zz3Xe/yTwTxlyKBU0w17sOttoKz7rKFox 6EzHWYtXTjijuGEjRL1zw8Z8C1vCgapr1a1MsACI4Sl19CW0rUT8/kuMEceW7LFVFX/1bGsHmTv /rrZuEuHngbvbi5EHN8cyGZoovwkbQ6nTQbea/HohKWrsIuJJS0zlySVSBwgagRg8MbrVLfV6xd XLCwJ/GIQq8Dhcc8wysTaI8hHm0stjpTYct0KrahNMOWaHEsjjxgXJmmY6KewSTUT/8LYWaO62l QfqPmzNzXBWPPvR0nhU4a+Gq6+VVtGbxX22gm34/GcXCCv5f 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-arm-msm@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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/video/backlight/qcom-wled.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c index 527210e85795..8d88f36d8ff3 100644 --- a/drivers/video/backlight/qcom-wled.c +++ b/drivers/video/backlight/qcom-wled.c @@ -1717,7 +1717,7 @@ static int wled_probe(struct platform_device *pdev) return PTR_ERR_OR_ZERO(bl); }; -static int wled_remove(struct platform_device *pdev) +static void wled_remove(struct platform_device *pdev) { struct wled *wled = platform_get_drvdata(pdev); @@ -1725,8 +1725,6 @@ static int wled_remove(struct platform_device *pdev) cancel_delayed_work_sync(&wled->ovp_work); disable_irq(wled->short_irq); disable_irq(wled->ovp_irq); - - return 0; } static const struct of_device_id wled_match_table[] = { @@ -1742,7 +1740,7 @@ MODULE_DEVICE_TABLE(of, wled_match_table); static struct platform_driver wled_driver = { .probe = wled_probe, - .remove = wled_remove, + .remove_new = wled_remove, .driver = { .name = "qcom,wled", .of_match_table = wled_match_table,