From patchwork Tue Nov 28 17:38:28 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: 13471466 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 030601B5 for ; Tue, 28 Nov 2023 09:38:54 -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 1r822i-00064T-ME; Tue, 28 Nov 2023 18:38:40 +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 1r822g-00CECl-NC; Tue, 28 Nov 2023 18:38:38 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r822g-00AIhl-Dn; Tue, 28 Nov 2023 18:38:38 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Jeff Johnson , Wei Fang , Nick Child , Rob Herring , Christian Marangi , netdev@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH net-next v2 4/4] net: ethernet: ezchip: Convert to platform remove callback returning void Date: Tue, 28 Nov 2023 18:38:28 +0100 Message-ID: <20231128173823.867512-5-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231128173823.867512-1-u.kleine-koenig@pengutronix.de> References: <20231128173823.867512-1-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=1952; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=WCsH3AMo/doRPWS4MbdyGRufJOyZqp9N04kNPeC/Gik=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlZiWUV6v2I6EmNxRvcipcDEJ99dfcKTYnDgtlb 3D2ierZF62JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZWYllAAKCRCPgPtYfRL+ Ts2tCACWtYDOpaQWd3qkHjGEkwEmctfr8LmpvWrCCx67xjhDXobcoJtCCv9NBNcLtVxKlVDgAq6 VTFw57rRrUtqqh63hsO9yZQMjwBf5okOjEIaT2XI/mOIzphaol0T5yMZo8Iot8nScFN8RI8Xqri e0YoUWacv1eDHY7b9mcPn1Ig5KLPAlID5/WKQ2wvuRfNWJoDv9GnXYWO43M4Nqm+GNo4nD9cX8L UuKAB4rT5NakcA1o5mFzRInkla6uyfDmXNx5C4HhByLzmgprn99lWKfRJaQ7MzOp1KG6frRG/JR tYT/9kYn/nPzvDvIJKKHsJvk98VeSNWahimVWk6aSduQHau8 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/ethernet/ezchip/nps_enet.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 4d7184d46824..07c2b701b5fa 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -633,7 +633,7 @@ static s32 nps_enet_probe(struct platform_device *pdev) return err; } -static s32 nps_enet_remove(struct platform_device *pdev) +static void nps_enet_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); struct nps_enet_priv *priv = netdev_priv(ndev); @@ -641,8 +641,6 @@ static s32 nps_enet_remove(struct platform_device *pdev) unregister_netdev(ndev); netif_napi_del(&priv->napi); free_netdev(ndev); - - return 0; } static const struct of_device_id nps_enet_dt_ids[] = { @@ -653,7 +651,7 @@ MODULE_DEVICE_TABLE(of, nps_enet_dt_ids); static struct platform_driver nps_enet_driver = { .probe = nps_enet_probe, - .remove = nps_enet_remove, + .remove_new = nps_enet_remove, .driver = { .name = DRV_NAME, .of_match_table = nps_enet_dt_ids,