From patchwork Wed Apr 5 14:10:01 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: 13201825 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 42DD4C76188 for ; Wed, 5 Apr 2023 14:11:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238401AbjDEOLY (ORCPT ); Wed, 5 Apr 2023 10:11:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238287AbjDEOKy (ORCPT ); Wed, 5 Apr 2023 10:10:54 -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 5832361BA for ; Wed, 5 Apr 2023 07:10:24 -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 1pk3q4-0003FF-W1; Wed, 05 Apr 2023 16:10:17 +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 1pk3q3-009Abf-Ve; Wed, 05 Apr 2023 16:10:15 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pk3q2-00AmTp-Vv; Wed, 05 Apr 2023 16:10:15 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Paul Cercueil , Bin Liu , Greg Kroah-Hartman Cc: linux-mips@vger.kernel.org, linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 02/10] usb: musb: jz4740: Convert to platform remove callback returning void Date: Wed, 5 Apr 2023 16:10:01 +0200 Message-Id: <20230405141009.3400693-3-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230405141009.3400693-1-u.kleine-koenig@pengutronix.de> References: <20230405141009.3400693-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1655; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=LInJ1VCltnR5zQZF3u3QFfDFUTQVLF2/3mjdDDUK2yk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkLYEyTrllnyAk+4A0JArG+9Z/8Sf3w+R94F9Np ubxA2IrkuiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZC2BMgAKCRCPgPtYfRL+ TjL3B/9f8A8Z7sDaUMrpsotRlJ7ybY+bjEYSC1gxqkgn4tREYbIL1JbtbPZWL/TpGStVeFj5cMr 0odUsl8fFZCjUekBIrcoTyh8L01dd5OgNaK8984RFHipQs9cpN1F/akKcrxZwyWe2CAtxqd3MHg t9QO++Kc8bX2u4oiQlsEbC7kulRlOCUSZrAYFa0LV1UqUNi+Ii0cR2qj0DwekW9bcbkwyQdxSfq AYmp5OkU/BIKhto8XMg3n1dKD1TN4oSw/LWkCApRVpJ74V+FKz4xYLGyLBNznAIeWvoMnFcvS39 kTXzmrmau+fHdXFuyaIyyYTxx4eD6HiN2vOyiT5/3fPSbn9o 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-usb@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@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 Reviewed-by: Paul Cercueil Reviewed-by: Philippe Mathieu-Daudé --- drivers/usb/musb/jz4740.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c index c7b1d2a394d9..5aabdd7e2511 100644 --- a/drivers/usb/musb/jz4740.c +++ b/drivers/usb/musb/jz4740.c @@ -308,14 +308,12 @@ static int jz4740_probe(struct platform_device *pdev) return ret; } -static int jz4740_remove(struct platform_device *pdev) +static void jz4740_remove(struct platform_device *pdev) { struct jz4740_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->pdev); clk_disable_unprepare(glue->clk); - - return 0; } static const struct of_device_id jz4740_musb_of_match[] = { @@ -327,7 +325,7 @@ MODULE_DEVICE_TABLE(of, jz4740_musb_of_match); static struct platform_driver jz4740_driver = { .probe = jz4740_probe, - .remove = jz4740_remove, + .remove_new = jz4740_remove, .driver = { .name = "musb-jz4740", .of_match_table = jz4740_musb_of_match,