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GET /api/patches/502987/?format=api
{ "id": 502987, "url": "http://patchwork.ozlabs.org/api/patches/502987/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1438572986-32708-1-git-send-email-baijiaju1990@163.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1438572986-32708-1-git-send-email-baijiaju1990@163.com>", "list_archive_url": null, "date": "2015-08-03T03:36:26", "name": "igb: Fix a deadlock in igb_sriov_reinit", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "58e6243c2cd9dee91f19481ebeb34ba17fbc0fae", "submitter": { "id": 65398, "url": "http://patchwork.ozlabs.org/api/people/65398/?format=api", "name": "Jia-Ju Bai", "email": "baijiaju1990@163.com" }, "delegate": { "id": 68, "url": "http://patchwork.ozlabs.org/api/users/68/?format=api", "username": "jtkirshe", "first_name": "Jeff", "last_name": "Kirsher", "email": "jeffrey.t.kirsher@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1438572986-32708-1-git-send-email-baijiaju1990@163.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/502987/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/502987/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@lists.osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Received": [ "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ozlabs.org (Postfix) with ESMTP id 66837140157\n\tfor <incoming@patchwork.ozlabs.org>;\n\tMon, 3 Aug 2015 13:52:14 +1000 (AEST)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 67C3BA2780;\n\tMon, 3 Aug 2015 03:52:13 +0000 (UTC)", "from fraxinus.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id t3wMXE68KmJX; Mon, 3 Aug 2015 03:52:13 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 16851A266D;\n\tMon, 3 Aug 2015 03:52:13 +0000 (UTC)", "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ash.osuosl.org (Postfix) with ESMTP id EE4521C1F8C\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 3 Aug 2015 03:52:11 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id E7E0FA277D\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 3 Aug 2015 03:52:11 +0000 (UTC)", "from fraxinus.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id wID_BWxncbMS for <intel-wired-lan@lists.osuosl.org>;\n\tMon, 3 Aug 2015 03:52:10 +0000 (UTC)", "from m50-138.163.com (m50-138.163.com [123.125.50.138])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id C3F97A266D\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 3 Aug 2015 03:52:09 +0000 (UTC)", "from bai-oslab.tsinghua.edu.cn (unknown [173.252.200.40])\n\tby smtp1 (Coremail) with SMTP id C9GowAAnX7e94b5VuXt4AQ--.31568S2;\n\tMon, 03 Aug 2015 11:36:42 +0800 (CST)" ], "Authentication-Results": "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=163.com header.i=@163.com header.b=XOf2xX+R;\n\tdkim-atps=neutral", "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "delayed 00:15:21 by SQLgrey-1.7.6", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n\ts=s110527; h=From:Subject:Date:Message-Id; bh=KmQtpG4nAtLQQaM/1z\n\tcVjc0ZbYqeSFGzxxhKbrHf6jE=; b=XOf2xX+RTAeShAFnq0BrQWmMqvooH/YZSP\n\t7agr4YoooiC9548p3h06g/vP+f/X8d1LSnjQrzOSeEgxaC/6tdpJjO7FvMuexXuL\n\tqyxnyoHEguOYSfYzNuHowaaxs0Stq7kHbmdp//1iAA8Qyo1tel+Q8WDrQZl8JqPg\n\tDOAYZ51TU=", "From": "Jia-Ju Bai <baijiaju1990@163.com>", "To": "jeffrey.t.kirsher@intel.com,\n\tjesse.brandeburg@intel.com", "Date": "Mon, 3 Aug 2015 11:36:26 +0800", "Message-Id": "<1438572986-32708-1-git-send-email-baijiaju1990@163.com>", "X-Mailer": "git-send-email 1.7.9.5", "X-CM-TRANSID": "C9GowAAnX7e94b5VuXt4AQ--.31568S2", "X-Coremail-Antispam": "1Uf129KBjvdXoWrZF17KF45Ww4fZr4UXF4xWFg_yoWfJrc_Gr\n\tnrZFWrXr45Kr1Fkr40yr4av3yq9ryvqry8Cw4ftrWa9F17Cr13Gw1DXr93WFWkW34fCa4D\n\tCrnIqF1Iyw1jkjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT\n\t9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUntKItUUUUU==", "X-Originating-IP": "[173.252.200.40]", "X-CM-SenderInfo": "xedlyx5dmximizq6il2tof0z/1tbiZQtLelWBK9elSgAAsY", "Cc": "netdev@vger.kernel.org, Jia-Ju Bai <baijiaju1990@163.com>,\n\tintel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org", "Subject": "[Intel-wired-lan] [PATCH] igb: Fix a deadlock in igb_sriov_reinit", "X-BeenThere": "intel-wired-lan@lists.osuosl.org", "X-Mailman-Version": "2.1.18-1", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.lists.osuosl.org>", "List-Unsubscribe": "<http://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@lists.osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@lists.osuosl.org?subject=help>", "List-Subscribe": "<http://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@lists.osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@lists.osuosl.org>" }, "content": "When igb_init_interrupt_scheme in igb_sriov_reinit is failed, the lock \nacquired by rtnl_lock() is not released, which causes a deadlock.\nThis patch adds rtnl_unlock() in error handling to fix it.\n\nSigned-off-by: Jia-Ju Bai <baijiaju1990@163.com>\n---\n drivers/net/ethernet/intel/igb/igb_main.c | 1 +\n 1 file changed, 1 insertion(+)", "diff": "diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c\nindex 2f70a9b..311d1ca 100644\n--- a/drivers/net/ethernet/intel/igb/igb_main.c\n+++ b/drivers/net/ethernet/intel/igb/igb_main.c\n@@ -7539,6 +7539,7 @@ static int igb_sriov_reinit(struct pci_dev *dev)\n \n \tif (igb_init_interrupt_scheme(adapter, true)) {\n \t\tdev_err(&pdev->dev, \"Unable to allocate memory for queues\\n\");\n+\t\trtnl_unlock();\n \t\treturn -ENOMEM;\n \t}\n \n", "prefixes": [] }