From patchwork Fri Mar 3 17:19:47 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: 13159105 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 13C3DC7EE39 for ; Fri, 3 Mar 2023 17:21:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231574AbjCCRVK (ORCPT ); Fri, 3 Mar 2023 12:21:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231586AbjCCRVD (ORCPT ); Fri, 3 Mar 2023 12:21:03 -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 32CE647412 for ; Fri, 3 Mar 2023 09:21:02 -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 1pY95X-0006jM-T6; Fri, 03 Mar 2023 18:20:59 +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 1pY95W-001blB-FR; Fri, 03 Mar 2023 18:20:58 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95V-001tjx-Fg; Fri, 03 Mar 2023 18:20:57 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown Cc: linux-spi@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 33/87] spi: lantiq-ssc: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:47 +0100 Message-Id: <20230303172041.2103336-34-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1664; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=tPRupWNCOhkJMNvWgyjIqRGon80u4y/NxLD0/Cu25H0=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiuKxz7XvUO35afuFXm08crM5tkto4f/VtOLa LEapz+UEIWJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrigAKCRDB/BR4rcrs CZTIB/99xBGcmhZNK1bOSiOXCVH+4papQ+UqTaLkVu3PilDtSYzroBTrJ1GepIW0mXO4XKx1Sok 4cLIGP0nGB3GvlBLubUBWevzUngv6Alv6FCZUgvu37URBz0NtivZPnB3baf+AtqVij3BB8Rcncz G9/OXu0nkLMEbbs/uOKW22kwqpYS0yXBsZEkY8ln9kRNZQzLahOU3wSdGvCbeFQiXAWeWVUhYr9 KVXHLt6UeHRgHsUAwAzG3CaH3cCmZo9sIXxnfOnLCgkIvnwPkf7534Uwi5iqsY8d/R4deualw3c 0zlOaZeLg1oPLbuP+X8qEaUAR86WlJTgL2BgKOVseoEVgvjr 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-spi@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@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/spi/spi-lantiq-ssc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-lantiq-ssc.c b/drivers/spi/spi-lantiq-ssc.c index aae26f62ea87..76cf2a66f874 100644 --- a/drivers/spi/spi-lantiq-ssc.c +++ b/drivers/spi/spi-lantiq-ssc.c @@ -1017,7 +1017,7 @@ static int lantiq_ssc_probe(struct platform_device *pdev) return err; } -static int lantiq_ssc_remove(struct platform_device *pdev) +static void lantiq_ssc_remove(struct platform_device *pdev) { struct lantiq_ssc_spi *spi = platform_get_drvdata(pdev); @@ -1030,13 +1030,11 @@ static int lantiq_ssc_remove(struct platform_device *pdev) destroy_workqueue(spi->wq); clk_disable_unprepare(spi->spi_clk); clk_put(spi->fpi_clk); - - return 0; } static struct platform_driver lantiq_ssc_driver = { .probe = lantiq_ssc_probe, - .remove = lantiq_ssc_remove, + .remove_new = lantiq_ssc_remove, .driver = { .name = "spi-lantiq-ssc", .of_match_table = lantiq_ssc_match,