From patchwork Fri Nov 17 09:59:29 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: 13458710 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 514B185 for ; Fri, 17 Nov 2023 01:59:54 -0800 (PST) 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 1r3vdd-0000DT-3D; Fri, 17 Nov 2023 10:59:49 +0100 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 1r3vdc-009eFs-48; Fri, 17 Nov 2023 10:59:48 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r3vdb-002zWG-RA; Fri, 17 Nov 2023 10:59:47 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Zhao Qiang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kernel@pengutronix.de Subject: [PATCH net-next 06/10] net: wan/fsl_ucc_hdlc: Convert to platform remove callback returning void Date: Fri, 17 Nov 2023 10:59:29 +0100 Message-ID: <20231117095922.876489-7-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> References: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1871; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=NcjkW4IneIOd0dLZTdAVWdaFwPL7kTl1fdfEPCD9h5I=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlVzmBIBQWc3YwrHGUgl1NVC071q+J3xqj1LQj9 OBZHa0ZmN2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZVc5gQAKCRCPgPtYfRL+ Tsw+CAChcjHP+6yzxRri4q0G7oSZfAo0onlNYcorEcXtoIGeDwvEG7p0U4jr4HMunXrIW+Puc4W MBQXqVtK9P+Y53I3/5NRxeKIncunGSW/sK3r7Nx9Bc0IoVP5obik0M0wHUhMu9HtB8EApBcICqw r4Wu2D2NYlV6Ctuqny1pT1U+oCDeaFG1gyf0TO17muS8jqeEImDLfaSpGBIoePDivBtb95xCzSh moZme9sFnUlOV7WoRmLCUGOv+BlLwSuWlsTe3sr64c3c8Q4faSV3Fnqw1dEUBYi8RMyBtDAa0p2 GxmObJMk9eAG6wxOcQPqy6RXxZOKMHjV9XSQzi0cfL+t0Xf+ 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: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@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() 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/net/wan/fsl_ucc_hdlc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index fd50bb313b92..605e70f7baac 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -1259,7 +1259,7 @@ static int ucc_hdlc_probe(struct platform_device *pdev) return ret; } -static int ucc_hdlc_remove(struct platform_device *pdev) +static void ucc_hdlc_remove(struct platform_device *pdev) { struct ucc_hdlc_private *priv = dev_get_drvdata(&pdev->dev); @@ -1277,8 +1277,6 @@ static int ucc_hdlc_remove(struct platform_device *pdev) kfree(priv); dev_info(&pdev->dev, "UCC based hdlc module removed\n"); - - return 0; } static const struct of_device_id fsl_ucc_hdlc_of_match[] = { @@ -1292,7 +1290,7 @@ MODULE_DEVICE_TABLE(of, fsl_ucc_hdlc_of_match); static struct platform_driver ucc_hdlc_driver = { .probe = ucc_hdlc_probe, - .remove = ucc_hdlc_remove, + .remove_new = ucc_hdlc_remove, .driver = { .name = DRV_NAME, .pm = HDLC_PM_OPS,