From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1620BC432BE for ; Wed, 1 Sep 2021 21:01:33 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CC441603E9 for ; Wed, 1 Sep 2021 21:01:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CC441603E9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=MgOl+InTqHm1mKDaS3UqVsWi7P4yoZrt8TY0j7EHmNc=; b=34PVMZu7Pn0jDW 8X+p1D5qYASjvVdHPoBzV226AnWSv5ZVkEcFRLC5fArO21ehfjqgKI2NU4bvjXwTI4ocHH3joaCX/ LlauF/ZGpH5r6LyQ0FSzxnxXPkHce4g412+Dhn6qQ6P8+XOQ+9EULTWCJ3eb1vmfa7exwG4cJrghw /3lkjYBY+EBh7ElogrYFdxh3+WM7KCDN2TzKtysM8Pz3iJ6+yo7DBs7dxSwndEm4sKZADBZZ5FK8Y ueZRI7ZPnZgrqdUhZL8tbN59WxNYaDhc80OzIE7L94FpHkV/PpiYUNiJsaRZBHhFDxyGZKxGbkKM8 6NBx95lY1BfpWjlsOsdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLXLv-007Lcj-TJ; Wed, 01 Sep 2021 21:00:59 +0000 Received: from mcgrof by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLXLR-007LWJ-LJ; Wed, 01 Sep 2021 21:00:29 +0000 From: Luis Chamberlain To: axboe@kernel.dk, bhelgaas@google.com, liushixin2@huawei.com, thunder.leizhen@huawei.com, lee.jones@linaro.org, geoff@infradead.org, mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, jim@jtan.com, haris.iqbal@ionos.com, jinpu.wang@ionos.com, josh.h.morris@us.ibm.com, pjk1939@linux.ibm.com, tim@cyberelk.net, richard@nod.at, miquel.raynal@bootlin.com, vigneshr@ti.com Cc: linux-mtd@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Luis Chamberlain Subject: [PATCH 08/10] block/sx8: add error handling support for add_disk() Date: Wed, 1 Sep 2021 14:00:26 -0700 Message-Id: <20210901210028.1750956-9-mcgrof@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210901210028.1750956-1-mcgrof@kernel.org> References: <20210901210028.1750956-1-mcgrof@kernel.org> MIME-Version: 1.0 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling. A completion is used to notify the initial probe what is happening and so we must defer error handling on completion. Do this by remembering the error and using the shared cleanup function. The tags are shared and so are hanlded later for the driver already. Signed-off-by: Luis Chamberlain --- drivers/block/sx8.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index 420cd952ddc4..1c79248c4826 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -297,6 +297,7 @@ struct carm_host { struct work_struct fsm_task; + int probe_err; struct completion probe_comp; }; @@ -1181,8 +1182,11 @@ static void carm_fsm_task (struct work_struct *work) struct gendisk *disk = port->disk; set_capacity(disk, port->capacity); - add_disk(disk); - activated++; + host->probe_err = add_disk(disk); + if (!host->probe_err) + activated++; + else + break; } printk(KERN_INFO DRV_NAME "(%s): %d ports activated\n", @@ -1192,11 +1196,9 @@ static void carm_fsm_task (struct work_struct *work) reschedule = 1; break; } - case HST_PROBE_FINISHED: complete(&host->probe_comp); break; - case HST_ERROR: /* FIXME: TODO */ break; @@ -1507,7 +1509,10 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_free_irq; DPRINTK("waiting for probe_comp\n"); + host->probe_err = -ENODEV; wait_for_completion(&host->probe_comp); + if (host->probe_err) + goto err_out_free_irq; printk(KERN_INFO "%s: pci %s, ports %d, io %llx, irq %u, major %d\n", host->name, pci_name(pdev), (int) CARM_MAX_PORTS, -- 2.30.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/