From patchwork Wed Sep 27 08:10:21 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: 13400320 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7853A1D550 for ; Wed, 27 Sep 2023 08:10:56 +0000 (UTC) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qlPd9-0007wR-W6; Wed, 27 Sep 2023 10:10:48 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qlPd9-009I7H-HW; Wed, 27 Sep 2023 10:10:47 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qlPd9-005BQY-8S; Wed, 27 Sep 2023 10:10:47 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Benson Leung , Tzung-Bi Shih Cc: chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 08/27] platform/chrome: cros_usbpd_logger: Convert to platform remove callback returning void Date: Wed, 27 Sep 2023 10:10:21 +0200 Message-Id: <20230927081040.2198742-9-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230927081040.2198742-1-u.kleine-koenig@pengutronix.de> References: <20230927081040.2198742-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1915; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=OR3i3JXD2RroVrhEaYXFvH7Zyx63QW9KL3sGpWCOSHI=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlE+NmcnjMJd1YF7F9Gmo1cKEwJETNMDNXQ8MpI +/rkZ4CkG2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZRPjZgAKCRCPgPtYfRL+ TsedCACLo1awQfxrjnzfeCY8rAFtLXItTZBOhX68W7MhGBIue8KMiomkwzPEc4QO2EGPuHyBJgc LEP/AZ56sPA9AGaWsxnQcswD0DN2d0rKTQZrMONwkPrnf2ba5avG+mhOLWbVs3FN4aAbx9gj8Sj M7ZbJnExojsGA6df6k1o5sZtaYh1vaOftfre8XIn7A1c2Tw0fv4BzUsrYYpA6Su2qhGNtvZrTi+ zEQ+8DaALtH/U6mOIGuLgjEBNwBVdzanKp9WBp+yamwv2JRQxcg7ZnwYEfIlCHT2TYtg69YwJfE rgkWghOhE7zWiSQg1zZPqW4RspRoLL2GDNfOtf9gFNq5Wciu 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.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: chrome-platform@lists.linux.dev 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() will be 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/platform/chrome/cros_usbpd_logger.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/platform/chrome/cros_usbpd_logger.c b/drivers/platform/chrome/cros_usbpd_logger.c index d16931203d82..f618757f8b32 100644 --- a/drivers/platform/chrome/cros_usbpd_logger.c +++ b/drivers/platform/chrome/cros_usbpd_logger.c @@ -219,14 +219,12 @@ static int cros_usbpd_logger_probe(struct platform_device *pd) return 0; } -static int cros_usbpd_logger_remove(struct platform_device *pd) +static void cros_usbpd_logger_remove(struct platform_device *pd) { struct logger_data *logger = platform_get_drvdata(pd); cancel_delayed_work_sync(&logger->log_work); destroy_workqueue(logger->log_workqueue); - - return 0; } static int __maybe_unused cros_usbpd_logger_resume(struct device *dev) @@ -257,7 +255,7 @@ static struct platform_driver cros_usbpd_logger_driver = { .pm = &cros_usbpd_logger_pm_ops, }, .probe = cros_usbpd_logger_probe, - .remove = cros_usbpd_logger_remove, + .remove_new = cros_usbpd_logger_remove, }; module_platform_driver(cros_usbpd_logger_driver);