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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A015C433EF for ; Fri, 15 Oct 2021 23:31:24 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (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 034EA61211 for ; Fri, 15 Oct 2021 23:31:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 034EA61211 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-441-enHmtBOOO92G39lLabss7w-1; Fri, 15 Oct 2021 19:31:19 -0400 X-MC-Unique: enHmtBOOO92G39lLabss7w-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6C133180830E; Fri, 15 Oct 2021 23:31:15 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5381360C9F; Fri, 15 Oct 2021 23:31:15 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id F226C4EA2F; Fri, 15 Oct 2021 23:31:14 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 19FNUgUY015292 for ; Fri, 15 Oct 2021 19:30:42 -0400 Received: by smtp.corp.redhat.com (Postfix) id 34F28400E410; Fri, 15 Oct 2021 23:30:42 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast04.extmail.prod.ext.rdu2.redhat.com [10.11.55.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 30BA540D1B98 for ; Fri, 15 Oct 2021 23:30:42 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1697B100E666 for ; Fri, 15 Oct 2021 23:30:42 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-282-AREbiacAOf-Bj5-SeRJ5fw-1; Fri, 15 Oct 2021 19:30:38 -0400 X-MC-Unique: AREbiacAOf-Bj5-SeRJ5fw-1 Received: from mcgrof by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mbWej-0095uv-7C; Fri, 15 Oct 2021 23:30:29 +0000 From: Luis Chamberlain To: axboe@kernel.dk, jejb@linux.ibm.com, martin.petersen@oracle.com, agk@redhat.com, snitzer@redhat.com, colyli@suse.de, kent.overstreet@gmail.com, boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org, roger.pau@citrix.com, geert@linux-m68k.org, ulf.hansson@linaro.org, tj@kernel.org, hare@suse.de, jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes.berg@intel.com, krisman@collabora.com, chris.obbard@collabora.com, thehajime@gmail.com, zhuyifei1999@gmail.com, haris.iqbal@ionos.com, jinpu.wang@ionos.com, miquel.raynal@bootlin.com, vigneshr@ti.com, linux-mtd@lists.infradead.org Date: Fri, 15 Oct 2021 16:30:21 -0700 Message-Id: <20211015233028.2167651-3-mcgrof@kernel.org> In-Reply-To: <20211015233028.2167651-1-mcgrof@kernel.org> References: <20211015233028.2167651-1-mcgrof@kernel.org> MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 X-loop: dm-devel@redhat.com Cc: linux-m68k@vger.kernel.org, linux-scsi@vger.kernel.org, linux-um@lists.infradead.org, linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, dm-devel@redhat.com, Luis Chamberlain , xen-devel@lists.xenproject.org, Christoph Hellwig Subject: [dm-devel] [PATCH 2/9] scsi/sr: add error handling support for add_disk() X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling. Just put the cdrom kref and have the unwinding be done by sr_kref_release(). Reviewed-by: Christoph Hellwig Signed-off-by: Luis Chamberlain --- drivers/scsi/sr.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 115f7ef7a5de..4e5515848fa6 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -728,7 +728,12 @@ static int sr_probe(struct device *dev) dev_set_drvdata(dev, cd); disk->flags |= GENHD_FL_REMOVABLE; sr_revalidate_disk(cd); - device_add_disk(&sdev->sdev_gendev, disk, NULL); + + error = device_add_disk(&sdev->sdev_gendev, disk, NULL); + if (error) { + kref_put(&cd->kref, sr_kref_release); + goto fail; + } sdev_printk(KERN_DEBUG, sdev, "Attached scsi CD-ROM %s\n", cd->cdi.name); -- 2.30.2 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel