From patchwork Mon Sep 27 22:00:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Chamberlain X-Patchwork-Id: 12520943 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 86589C433FE for ; Mon, 27 Sep 2021 22:01:39 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 58CCF60E73 for ; Mon, 27 Sep 2021 22:01:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 58CCF60E73 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.197209.350252 (Exim 4.92) (envelope-from ) id 1mUygm-00047e-BN; Mon, 27 Sep 2021 22:01:32 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 197209.350252; Mon, 27 Sep 2021 22:01:32 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mUygm-00047X-6y; Mon, 27 Sep 2021 22:01:32 +0000 Received: by outflank-mailman (input) for mailman id 197209; Mon, 27 Sep 2021 22:01:31 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mUygl-0000mS-F7 for xen-devel@lists.xenproject.org; Mon, 27 Sep 2021 22:01:31 +0000 Received: from bombadil.infradead.org (unknown [2607:7c80:54:e::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 6cf0e5b8-187c-4d9c-80b9-ddd084603ee4; Mon, 27 Sep 2021 22:00:50 +0000 (UTC) Received: from mcgrof by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mUyfw-004SvY-Q6; Mon, 27 Sep 2021 22:00:40 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list X-Inumbo-ID: 6cf0e5b8-187c-4d9c-80b9-ddd084603ee4 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=Zp3peWChzsLwJZgR1i8Dtyh3FOO544lFeJzlWbkfyco=; b=xyicbK2H0CR7mxWgNNAbZZVOoG f/TY+aOtnMS/uoVtMXqtPXis+vbZhtpiS/ndUP0AdX9IDRGIobYET1+iWMgf0eic3hI0JSLbAulKG 8wvXxEzmhDvXeOmmj8TPh+HGQ0Q2wvHySLXwxFAgsiQ0IWl+sk40LXHXcOXOHWUbo3breLF9OOmtC aU5QvqBV5mC+pgxhFyfAWSzB39tzj8teDlNoEJNNKk8zoulQfqxsIBVBuYTJraMMbw8Z6hDN9ZQpa LM244ocJ/fpPGEyLZkxh+GCiIuoIMgqFitcviGyRgvFztoaDWVexx1nlLNy/oEUY4relGyOFoN2oa SP4Bj1fA==; From: Luis Chamberlain To: axboe@kernel.dk, colyli@suse.de, kent.overstreet@gmail.com, kbusch@kernel.org, sagi@grimberg.me, vishal.l.verma@intel.com, dan.j.williams@intel.com, dave.jiang@intel.com, ira.weiny@intel.com, konrad.wilk@oracle.com, roger.pau@citrix.com, boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org, minchan@kernel.org, ngupta@vflare.org, senozhatsky@chromium.org Cc: xen-devel@lists.xenproject.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-bcache@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Luis Chamberlain Subject: [PATCH v2 10/10] zram: add error handling support for add_disk() Date: Mon, 27 Sep 2021 15:00:39 -0700 Message-Id: <20210927220039.1064193-11-mcgrof@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210927220039.1064193-1-mcgrof@kernel.org> References: <20210927220039.1064193-1-mcgrof@kernel.org> MIME-Version: 1.0 Sender: Luis Chamberlain We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling. Signed-off-by: Luis Chamberlain --- drivers/block/zram/zram_drv.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index f61910c65f0f..59086e178fbd 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1953,7 +1953,9 @@ static int zram_add(void) blk_queue_max_write_zeroes_sectors(zram->disk->queue, UINT_MAX); blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, zram->disk->queue); - device_add_disk(NULL, zram->disk, zram_disk_attr_groups); + ret = device_add_disk(NULL, zram->disk, zram_disk_attr_groups); + if (ret) + goto out_cleanup_disk; strlcpy(zram->compressor, default_compressor, sizeof(zram->compressor)); @@ -1961,6 +1963,8 @@ static int zram_add(void) pr_info("Added device: %s\n", zram->disk->disk_name); return device_id; +out_cleanup_disk: + blk_cleanup_disk(zram->disk); out_free_idr: idr_remove(&zram_index_idr, device_id); out_free_dev: