From patchwork Wed May 17 23:01:20 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: 13245849 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 912BDC7EE22 for ; Wed, 17 May 2023 23:02:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229743AbjEQXC4 (ORCPT ); Wed, 17 May 2023 19:02:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229693AbjEQXCu (ORCPT ); Wed, 17 May 2023 19:02:50 -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 3D79F5B99 for ; Wed, 17 May 2023 16:02:49 -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 1pzQAQ-0007nt-WE; Thu, 18 May 2023 01:02:47 +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 1pzQAQ-000wow-C5; Thu, 18 May 2023 01:02:46 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAP-005UWN-Kq; Thu, 18 May 2023 01:02:45 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thinh Nguyen , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 18/97] usb: dwc3-of-simple: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:20 +0200 Message-Id: <20230517230239.187727-19-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230517230239.187727-1-u.kleine-koenig@pengutronix.de> References: <20230517230239.187727-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1860; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=dWcN5cIWOM4UBejp6HhCqo0zpup7VCGR/ViAFNVJDOQ=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVv/6JagR22opDJGF+lKBSsDjifpaAAAXEg9x EU+bcbGf3CJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVb/wAKCRCPgPtYfRL+ TlRuB/4g2Tav1z/dZJJK7v0mi1xtabxpDuGWvHYqhWW33LhO02cLT1vW5grYAZg0pw47lmeBn5i IE4qb3vQh+EKC/c5royvJSzsS8+T1gh3quSrJDvVsvlx8Ns53pln77yDSg8TcN3hRxKFN0CiHUp a4f1EpLJLeAxY4WY+C771keTHn3EfvJxUVoDzvpwxoohauhfd61jl0CES4TKa+DNIKy5EOIpl4J 5PCSJE41WHP71HehUfF5VTpS3zdWwfQstoeDhK2m1aytVeiLug+D/1JgqwXmVgMXKDoKY0RH+W7 ytjC9TIpORefN3l7J7mNKvQ25tJsNp3z528KcGOLZMqBWbKR 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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Thinh Nguyen --- drivers/usb/dwc3/dwc3-of-simple.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index 71fd620c5161..7e6ad8fe61a5 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -112,13 +112,11 @@ static void __dwc3_of_simple_teardown(struct dwc3_of_simple *simple) pm_runtime_set_suspended(simple->dev); } -static int dwc3_of_simple_remove(struct platform_device *pdev) +static void dwc3_of_simple_remove(struct platform_device *pdev) { struct dwc3_of_simple *simple = platform_get_drvdata(pdev); __dwc3_of_simple_teardown(simple); - - return 0; } static void dwc3_of_simple_shutdown(struct platform_device *pdev) @@ -183,7 +181,7 @@ MODULE_DEVICE_TABLE(of, of_dwc3_simple_match); static struct platform_driver dwc3_of_simple_driver = { .probe = dwc3_of_simple_probe, - .remove = dwc3_of_simple_remove, + .remove_new = dwc3_of_simple_remove, .shutdown = dwc3_of_simple_shutdown, .driver = { .name = "dwc3-of-simple",