From patchwork Wed May 17 23:01:09 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: 1782996 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QM7tW2NRrz20dv for ; Thu, 18 May 2023 09:02:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229737AbjEQXCz (ORCPT ); Wed, 17 May 2023 19:02:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229714AbjEQXCy (ORCPT ); Wed, 17 May 2023 19:02:54 -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 CB6F244A8 for ; Wed, 17 May 2023 16:02:53 -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 1pzQAO-0007jP-Uf; Thu, 18 May 2023 01:02:44 +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 1pzQAO-000wo2-6w; Thu, 18 May 2023 01:02:44 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAN-005UVe-FE; Thu, 18 May 2023 01:02:43 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Peter Chen , Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter Cc: linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 07/97] usb: chipidea/ci_hdrc_tegra: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:09 +0200 Message-Id: <20230517230239.187727-8-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=1873; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=63EJH4zRsCAjlTv4RDoaAYXCVSSuGmy2m/pYbXft39w=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVvyd0xAS4oiawnNnBIBolnhuu6gA/budC0kj mFUzAqAS+eJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVb8gAKCRCPgPtYfRL+ Tm2mB/9b+GjpuX9eU1nNGpdCu2vaONp+Sn2UlIT9vacUTcES09oPmfhxhYg2JhCK5BdLpKsGY4W UUo5Oo1eQkwRoSl1aYc5+uJi34x6f8R/OsTX9XoCJe6LDHZIZFwKPxWDgkMgAtWSOTG2f0CoWBJ AteK7LtmdqOEIGlSQVcf0utsI44ja4bPbvq3GwtBlIrpBNgjVHWLH5Z80lQQRo9cK6rvA4wbRJO 6AM/S/t9n+EbqLQy2NBwuF+vwbAbR1h2HjmeBMYMu+DwBlB2QVRKp9H7zv9uSuCsFFNtS9XImY5 2F+JElzNLaGCp6+PV3S4cb+BcWHG+7/0b7e/eHFmmHvy9Xlr 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-tegra@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-tegra@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 --- drivers/usb/chipidea/ci_hdrc_tegra.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index a72a9474afea..ca36d11a69ea 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -362,7 +362,7 @@ static int tegra_usb_probe(struct platform_device *pdev) return err; } -static int tegra_usb_remove(struct platform_device *pdev) +static void tegra_usb_remove(struct platform_device *pdev) { struct tegra_usb *usb = platform_get_drvdata(pdev); @@ -371,8 +371,6 @@ static int tegra_usb_remove(struct platform_device *pdev) pm_runtime_put_sync_suspend(&pdev->dev); pm_runtime_force_suspend(&pdev->dev); - - return 0; } static int __maybe_unused tegra_usb_runtime_resume(struct device *dev) @@ -410,7 +408,7 @@ static struct platform_driver tegra_usb_driver = { .pm = &tegra_usb_pm, }, .probe = tegra_usb_probe, - .remove = tegra_usb_remove, + .remove_new = tegra_usb_remove, }; module_platform_driver(tegra_usb_driver); From patchwork Wed May 17 23:01:45 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: 1783000 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QM7vX5Bdlz20dy for ; Thu, 18 May 2023 09:03:52 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229682AbjEQXDu (ORCPT ); Wed, 17 May 2023 19:03:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229933AbjEQXDt (ORCPT ); Wed, 17 May 2023 19:03:49 -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 871524C2C for ; Wed, 17 May 2023 16:03:22 -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 1pzQAY-00087R-5I; Thu, 18 May 2023 01:02:54 +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 1pzQAV-000wqi-D5; Thu, 18 May 2023 01:02:51 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAU-005UXy-H4; Thu, 18 May 2023 01:02:50 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter , Wayne Chang , Haotien Hsu , Jim Lin , Tang Bin , Sing-Han Chen Cc: linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 43/97] usb: gadget/tegra-xudc: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:45 +0200 Message-Id: <20230517230239.187727-44-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=1932; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=V8wJ4hIc/RpANBgbyAoFGSUry1QiFqxLkT0nd/ayWvU=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVw5N8mol602Bpt30MSTjGwYDtMkB59zk6r4+ k9D7olaw5qJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVcOQAKCRCPgPtYfRL+ TtZyB/9MGE27mEHWJTu5ks9TZR7zldbAhH3dBv3g0e6K9Pjpbtmfx1eAv26TSfrVsqEEgPlI1UY szf+/CNd0rtgc0tk4+wDftTpB6VGFCJ1gda7fBez+KNUVK1nw+XAnqCZqOCMQBjdzZPLh5DXwtT BGUsJN6twWYEWSH+fwJwu48bIqDKOclND5aGhILQxBIG78Xt8q7Ki7fOkLjDG7dSPCVpSLBTh58 gQnCu5hQY62oyRk+BQwi0dOmUGsW1/RGotbPunSApyQ8sGmqHreXtr1KQfjnyMaegKJ3FAXBB+S ECS3MTPT+ztBLSkO70FYGFZH6h+/gPEglsVhD36zXGg/QDb8 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-tegra@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-tegra@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 --- drivers/usb/gadget/udc/tegra-xudc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c index 34e9c1df54c7..83eaa65ddde3 100644 --- a/drivers/usb/gadget/udc/tegra-xudc.c +++ b/drivers/usb/gadget/udc/tegra-xudc.c @@ -3906,7 +3906,7 @@ static int tegra_xudc_probe(struct platform_device *pdev) return err; } -static int tegra_xudc_remove(struct platform_device *pdev) +static void tegra_xudc_remove(struct platform_device *pdev) { struct tegra_xudc *xudc = platform_get_drvdata(pdev); unsigned int i; @@ -3936,8 +3936,6 @@ static int tegra_xudc_remove(struct platform_device *pdev) pm_runtime_put(xudc->dev); tegra_xusb_padctl_put(xudc->padctl); - - return 0; } static int __maybe_unused tegra_xudc_powergate(struct tegra_xudc *xudc) @@ -4063,7 +4061,7 @@ static const struct dev_pm_ops tegra_xudc_pm_ops = { static struct platform_driver tegra_xudc_driver = { .probe = tegra_xudc_probe, - .remove = tegra_xudc_remove, + .remove_new = tegra_xudc_remove, .driver = { .name = "tegra-xudc", .pm = &tegra_xudc_pm_ops, From patchwork Wed May 17 23:02:26 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: 1783001 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QM7vl5MCFz20dv for ; Thu, 18 May 2023 09:04:03 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229949AbjEQXEC (ORCPT ); Wed, 17 May 2023 19:04:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229943AbjEQXEA (ORCPT ); Wed, 17 May 2023 19:04:00 -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 565C66186 for ; Wed, 17 May 2023 16:03:29 -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 1pzQAf-0008Up-FQ; Thu, 18 May 2023 01:03:01 +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 1pzQAd-000wuD-Uf; Thu, 18 May 2023 01:02:59 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAd-005Uag-1p; Thu, 18 May 2023 01:02:59 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mathias Nyman , Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter Cc: linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 84/97] usb: xhci-tegra: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:26 +0200 Message-Id: <20230517230239.187727-85-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=1988; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=21KhsgD79jCY/jj4wlw9t+6lKXxL2xNLqCJlfvOuhEI=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVzf3fyOgAHyIiUkoVyf5oQAUoiZxPo7rnZjQ duiQ8Qyy1qJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVc3wAKCRCPgPtYfRL+ TvqBCACV3RZ7ISD5f1hbO6jT9lClUbaAOrXoY6D4P+jRUeTYSlV1QoLYrXBpMscAbjQ3t3KOUqD 9lWugroRNb4tjehvqlDz7kOysJ5CT0cMQIoUn6TVplsT6oJ1dgCTD3YEHq8Kyb6E3oL/I9OwECa amv23RG0IgMCr5EjFvFNTD6qz+XS/Ql7EWVJ38tKlb4C4J3BdtRyuU5Hl6FWevnhxQ5nmgOZv0j glg9RLKDUZO7e5acAtHLVW6imeDfHHP5szFLE0YMGRfgsLYRPUXkTV+lbndIpMa1050/5zXdajQ JuaIaPLQHyPsEGZNAAiay0ICKkL08JnJ+n04rwSPP+nitugv 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-tegra@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-tegra@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 --- drivers/usb/host/xhci-tegra.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index c75d93244143..a36df04b9513 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -1909,7 +1909,7 @@ static int tegra_xusb_probe(struct platform_device *pdev) return err; } -static int tegra_xusb_remove(struct platform_device *pdev) +static void tegra_xusb_remove(struct platform_device *pdev) { struct tegra_xusb *tegra = platform_get_drvdata(pdev); struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); @@ -1939,8 +1939,6 @@ static int tegra_xusb_remove(struct platform_device *pdev) tegra_xusb_clk_disable(tegra); regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies); tegra_xusb_padctl_put(tegra->padctl); - - return 0; } static bool xhci_hub_ports_suspended(struct xhci_hub *hub) @@ -2650,7 +2648,7 @@ MODULE_DEVICE_TABLE(of, tegra_xusb_of_match); static struct platform_driver tegra_xusb_driver = { .probe = tegra_xusb_probe, - .remove = tegra_xusb_remove, + .remove_new = tegra_xusb_remove, .driver = { .name = "tegra-xusb", .pm = &tegra_xusb_pm_ops,