From patchwork Fri Oct 19 07:49:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 986605 X-Patchwork-Delegate: boris.brezillon@free-electrons.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="f16mZsfX"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42byrr09g4z9s5c for ; Fri, 19 Oct 2018 18:55:40 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=ZR+ocI/xeYdAB4gAgNMSg4bblktZ0E6OLsp9mg+buW4=; b=f16mZsfXQ8PhS+nAEDArprqDdw FEFxUxG18bcMFK5sddqu+zf5DCn/esnqM+MoYVd6JgEJgrUTkjOxFvvt3ceEEj+RMg8O1Ks8+pFZ+ 0BOLxUA3h3wE4io2roCmX9PldZtA+x20hYIvQcTmKaAR7SIjjfp7cY8pzAGDya+L5kevKk5fAizRX E8j5dTB7HXkx/anPIg9y51iHib5MEbDEfMBDL9+FK9lFFQvYhZWqL1KkShQ/n5La1WFHLrasp056F dbEHns3sFj74bHrHfIGdX1FQLoOLUNTvr1VAsRkUUFyj0Wipn4zihx4OtR5IlC9bFwi28GxA0lEdd ycGwu5cA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gDPd1-0008Mk-3p; Fri, 19 Oct 2018 07:55:27 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gDPXV-0003Sc-Fc for linux-mtd@lists.infradead.org; Fri, 19 Oct 2018 07:50:15 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id 5598820DD8; Fri, 19 Oct 2018 09:49:32 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.bootlin.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost.localdomain (91-160-177-164.subs.proxad.net [91.160.177.164]) by mail.bootlin.com (Postfix) with ESMTPSA id EA33620DE1; Fri, 19 Oct 2018 09:49:13 +0200 (CEST) From: Boris Brezillon To: David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , linux-mtd@lists.infradead.org Subject: [PATCH v2 07/15] mtd: maps: physmap: Check mtd_device_{parse_register, unregister}() ret code Date: Fri, 19 Oct 2018 09:49:00 +0200 Message-Id: <20181019074908.13226-8-boris.brezillon@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20181019074908.13226-1-boris.brezillon@bootlin.com> References: <20181019074908.13226-1-boris.brezillon@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181019_004945_702005_9C15967C X-CRM114-Status: GOOD ( 17.75 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , Linus Walleij , Rob Herring , Kumar Gala , Ricardo Ribalda Delgado MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org mtd_device_parse_register() and mtd_device_unregister() can fail, check their return code and propagate the error to the upper layer if needed. Signed-off-by: Boris Brezillon Reviewed-by: Ricardo Ribalda Delgado --- Changes in v2: - Add Ricardo's R-b --- drivers/mtd/maps/physmap.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 86679d149a49..9b34223c4635 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -35,7 +35,7 @@ static int physmap_flash_remove(struct platform_device *dev) { struct physmap_flash_info *info; struct physmap_flash_data *physmap_data; - int i; + int i, err; info = platform_get_drvdata(dev); if (info == NULL) @@ -44,7 +44,10 @@ static int physmap_flash_remove(struct platform_device *dev) physmap_data = dev_get_platdata(&dev->dev); if (info->cmtd) { - mtd_device_unregister(info->cmtd); + err = mtd_device_unregister(info->cmtd); + if (err) + return err; + if (info->cmtd != info->mtds[0]) mtd_concat_destroy(info->cmtd); } @@ -194,8 +197,12 @@ static int physmap_flash_probe(struct platform_device *dev) part_types = physmap_data->part_probe_types ? : part_probe_types; - mtd_device_parse_register(info->cmtd, part_types, NULL, - physmap_data->parts, physmap_data->nr_parts); + err = mtd_device_parse_register(info->cmtd, part_types, NULL, + physmap_data->parts, + physmap_data->nr_parts); + if (err) + goto err_out; + return 0; err_out: