From patchwork Mon Sep 25 09:55:16 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: 13397586 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1CDACE7A89 for ; Mon, 25 Sep 2023 09:57:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231199AbjIYJ5L (ORCPT ); Mon, 25 Sep 2023 05:57:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230417AbjIYJ4X (ORCPT ); Mon, 25 Sep 2023 05:56:23 -0400 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 70EC71A8 for ; Mon, 25 Sep 2023 02:55:53 -0700 (PDT) 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 1qkiJZ-00080h-Po; Mon, 25 Sep 2023 11:55:41 +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 1qkiJZ-008q07-1r; Mon, 25 Sep 2023 11:55:41 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qkiJY-004dly-Ok; Mon, 25 Sep 2023 11:55:40 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Andy Gross , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 25/40] soc/qcom: rmtfs_mem: Convert to platform remove callback returning void Date: Mon, 25 Sep 2023 11:55:16 +0200 Message-Id: <20230925095532.1984344-26-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230925095532.1984344-1-u.kleine-koenig@pengutronix.de> References: <20230925095532.1984344-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1979; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=le7eqGOuTakdhmTooKCsfZuf14WGGjNqknr7alRV/ww=; b=owGbwMvMwMXY3/A7olbonx/jabUkhlTBiJg97v/iWBJ0CxjXRAsbe0nmfbMOe31/BfsLjpVbs 5LqLqZ2MhqzMDByMciKKbLYN67JtKqSi+xc++8yzCBWJpApDFycAjCRxRs4GBYL7X8pZNC1p2xu oMxuy71zeqL5RWPsOyyCJexuxF0NXfv181E+R1X12hJW3lumuZf+7Vv1WFGpOcmvNnD6zEcRuUv mh1z8fSumQUuvnNVEfC2z87PrSrfK9jgq3AvpLJOrdXI+9nh2Rnswb7ihSBGH6JZE/p9uZyYd03 Wtm71Va6LXVIejfzrFwu87LLPZ5SF8zTEmX00zI1PgzL9kjqo5K9OX7zuZq/I6Z8Hvu2s1J1c/r Fk9IU/S2I/paK97++N3R8QWHaxyij/71Xr+Y3G7jiezVewMlerCt0n5G/W4HbLNqnMwmfNS7+bm wLWuKf5bebw3z8g1uWWefuZRNYtjebE0z4NlabIaMx8BAA== 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: linux-arm-msm@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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() 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/soc/qcom/rmtfs_mem.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c index f83811f51175..ab084b633ef0 100644 --- a/drivers/soc/qcom/rmtfs_mem.c +++ b/drivers/soc/qcom/rmtfs_mem.c @@ -281,7 +281,7 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev) return ret; } -static int qcom_rmtfs_mem_remove(struct platform_device *pdev) +static void qcom_rmtfs_mem_remove(struct platform_device *pdev) { struct qcom_rmtfs_mem *rmtfs_mem = dev_get_drvdata(&pdev->dev); struct qcom_scm_vmperm perm; @@ -296,8 +296,6 @@ static int qcom_rmtfs_mem_remove(struct platform_device *pdev) cdev_device_del(&rmtfs_mem->cdev, &rmtfs_mem->dev); put_device(&rmtfs_mem->dev); - - return 0; } static const struct of_device_id qcom_rmtfs_mem_of_match[] = { @@ -308,7 +306,7 @@ MODULE_DEVICE_TABLE(of, qcom_rmtfs_mem_of_match); static struct platform_driver qcom_rmtfs_mem_driver = { .probe = qcom_rmtfs_mem_probe, - .remove = qcom_rmtfs_mem_remove, + .remove_new = qcom_rmtfs_mem_remove, .driver = { .name = "qcom_rmtfs_mem", .of_match_table = qcom_rmtfs_mem_of_match,