From patchwork Fri May 12 21:27:24 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: 13239867 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 627A810792 for ; Fri, 12 May 2023 21:27:52 +0000 (UTC) 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 A90FB7EEE for ; Fri, 12 May 2023 14:27:46 -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 1pxaIa-0005Ku-6h; Fri, 12 May 2023 23:27:36 +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 1pxaIZ-0033X9-63; Fri, 12 May 2023 23:27:35 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pxaIY-003qie-AW; Fri, 12 May 2023 23:27:34 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 18/19] can: ti_hecc: Convert to platform remove callback returning void Date: Fri, 12 May 2023 23:27:24 +0200 Message-Id: <20230512212725.143824-19-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230512212725.143824-1-u.kleine-koenig@pengutronix.de> References: <20230512212725.143824-1-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=1821; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=c4YDZjlvuwi+NrNdZM2p4wmykATVvDSlWFTtsAs1Ip0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkXq84oZyncF9k07znLqDAa4KEE+wi3HrTjPp/8 l3Iy6dgL8uJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZF6vOAAKCRCPgPtYfRL+ TuW2B/41ErL4anDcV2GnqbOXhqKj/9aJeOUoYh+TKagaBfetPwe2yIDUjcm5cefKgYGh8TjBET8 j6KdG4WLggFVctQOxGdUBFynLMFOTzosqzn10NFvLsOt323tzhGFzN6lElKEnVF5i8ZfBwnpvDE tSCRLCoH4DZUd6TKOlx0R6NwBnZD3OIHx8JB71sutAReWFtwWhuaoPDMgLsgGt8qowXN9yIRpNo 1k1CIPIFalstTDOBuzmPD60CPhJJJu2Qz84mGl76CHm0Tng43xHe2HjRKuEPTIyaRmf7r+8ShVX MvU2Z5dZK/lrI9rf6cDFuzrL8vHsgJmVExmDwHMOlnzWfsV7 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: netdev@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 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() 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/net/can/ti_hecc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 27700f72eac2..9bab0b4cc449 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -963,7 +963,7 @@ static int ti_hecc_probe(struct platform_device *pdev) return err; } -static int ti_hecc_remove(struct platform_device *pdev) +static void ti_hecc_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); struct ti_hecc_priv *priv = netdev_priv(ndev); @@ -973,8 +973,6 @@ static int ti_hecc_remove(struct platform_device *pdev) clk_put(priv->clk); can_rx_offload_del(&priv->offload); free_candev(ndev); - - return 0; } #ifdef CONFIG_PM @@ -1028,7 +1026,7 @@ static struct platform_driver ti_hecc_driver = { .of_match_table = ti_hecc_dt_ids, }, .probe = ti_hecc_probe, - .remove = ti_hecc_remove, + .remove_new = ti_hecc_remove, .suspend = ti_hecc_suspend, .resume = ti_hecc_resume, };