From patchwork Sat Apr 1 16:19:01 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: 1764095 X-Patchwork-Delegate: miquel.raynal@bootlin.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=bVw9TWdX; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Ppj8X1cGKz1yZB for ; Sun, 2 Apr 2023 02:21:32 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Y1EzuhW6RCrWnOcNZNQqmdRF8skvF10zs7GFVParlDk=; b=bVw9TWdXjGvave CxncmoTAbEZPpWsOPnpu1hEVFeC1KPd8yKEMURZtaOWPkDt8jhZHeywjzH57/e5VNoC7zdkliF9qz L3Ny5wBUTJ1spn14b8rntnP0rQdWqEiRoDT0l++KKQQyBrGXPCiJCNoEfj6mIAK4C/8eFtFG6Jfnk BJaTxJvIzlNKEv7qvDQlX8XXn7wMKxsing6GFG3qD59rfeGj8xWfoFMOFyuyqpByh6EGM8FXg6Eax vSrOF27/WOOCIYC1w4tkkO4MC+zIers+xRLs41ksSX6LSTARB21TM5pCQ/zvGqd+1E8xSGhgRaFW+ tWV82KXzVkxbJuZNubFQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pidyO-00Asiv-0j; Sat, 01 Apr 2023 16:21:00 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pidxX-00As9K-1R for linux-mtd@lists.infradead.org; Sat, 01 Apr 2023 16:20:13 +0000 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 1pidxI-0008H8-AL; Sat, 01 Apr 2023 18:19:52 +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 1pidxH-008GQr-6p; Sat, 01 Apr 2023 18:19:51 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pidxE-009kfp-Ot; Sat, 01 Apr 2023 18:19:48 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Miquel Raynal , Vignesh Raghavendra Cc: Richard Weinberger , linux-mtd@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 12/49] mtd: rawnand: denali_dt: Convert to platform remove callback returning void Date: Sat, 1 Apr 2023 18:19:01 +0200 Message-Id: <20230401161938.2503204-13-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230401161938.2503204-1-u.kleine-koenig@pengutronix.de> References: <20230401161938.2503204-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1685; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=qu53JEhv/Z4bJEqq9yVu8BBGocu88PSDD4T3tHfhkJ8=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkKFj97/26wkgPxEpKLL179mj7Up6terazQIygM /MdpKim+Y2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZChY/QAKCRCPgPtYfRL+ Th8qCACOt4YCxyM8hsDXuBmwLUYnH9eVIqVRi+zZcYaUUSdfrFHVb81kgsqvuIuADi7pbl2ZfzH 0CbGYLY/IfkDCPBaVdvhg9lgq57GUocn/eWCfWCs6wQsdwDCAwO0F9qavLICION6ybSYVyGRXI+ l7Hv708BYGMtUQNBLzhbjZVmNY0N9oPn32jf7UwHY849IosGWvQ+BIfjar1OwNFodAHHl/N0Lnh J0jtnPQgk4R3vZtm3baVKzGtkxSqtoGM1S1gLHkNZAF4NbJSPb1ISfcSHzZL0SbcwlnxiqGq0W5 leqJFGmcFUj3Bh0uI+M5CBSzSmNe3IPOq/YM3ViRpNpbu2oQ 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: linux-mtd@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230401_092007_481829_6A58120D X-CRM114-Status: GOOD ( 16.02 ) X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: 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 [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [2001:67c:670:201:290:27ff:fe1d:cc33 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König --- drivers/mtd/nand/raw/denali_dt.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c index 8513bb9fcfcc..915047e3fbc2 100644 --- a/drivers/mtd/nand/raw/denali_dt.c +++ b/drivers/mtd/nand/raw/denali_dt.c @@ -233,7 +233,7 @@ static int denali_dt_probe(struct platform_device *pdev) return ret; } -static int denali_dt_remove(struct platform_device *pdev) +static void denali_dt_remove(struct platform_device *pdev) { struct denali_dt *dt = platform_get_drvdata(pdev); @@ -243,13 +243,11 @@ static int denali_dt_remove(struct platform_device *pdev) clk_disable_unprepare(dt->clk_ecc); clk_disable_unprepare(dt->clk_x); clk_disable_unprepare(dt->clk); - - return 0; } static struct platform_driver denali_dt_driver = { .probe = denali_dt_probe, - .remove = denali_dt_remove, + .remove_new = denali_dt_remove, .driver = { .name = "denali-nand-dt", .of_match_table = denali_nand_dt_ids,