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GET /api/patches/554875/?format=api
{ "id": 554875, "url": "http://patchwork.ozlabs.org/api/patches/554875/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1449705033-4968-11-git-send-email-joshua.a.hay@intel.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": "<1449705033-4968-11-git-send-email-joshua.a.hay@intel.com>", "list_archive_url": null, "date": "2015-12-09T23:50:30", "name": "[next,S23,10/13] i40evf: null out ring pointers on free", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "4986293796b55f8dff4b950a336c077e82cd2ca6", "submitter": { "id": 19461, "url": "http://patchwork.ozlabs.org/api/people/19461/?format=api", "name": "Joshua Hay", "email": "joshua.a.hay@intel.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/1449705033-4968-11-git-send-email-joshua.a.hay@intel.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/554875/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/554875/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 whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138])\n\tby ozlabs.org (Postfix) with ESMTP id 91308140E1E\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 10 Dec 2015 10:50:48 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id D8FC49242E;\n\tWed, 9 Dec 2015 23:50:47 +0000 (UTC)", "from whitealder.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id gsLXUtV9ZRUt; Wed, 9 Dec 2015 23:50:45 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id AE2459242A;\n\tWed, 9 Dec 2015 23:50:44 +0000 (UTC)", "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ash.osuosl.org (Postfix) with ESMTP id 2B4941BFA5C\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 9 Dec 2015 23:50:43 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 26D31A5B7B\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 9 Dec 2015 23:50:43 +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 XLos2kVOSoVb for <intel-wired-lan@lists.osuosl.org>;\n\tWed, 9 Dec 2015 23:50:41 +0000 (UTC)", "from mga11.intel.com (mga11.intel.com [192.55.52.93])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id B3E8BA5B23\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 9 Dec 2015 23:50:41 +0000 (UTC)", "from orsmga002.jf.intel.com ([10.7.209.21])\n\tby fmsmga102.fm.intel.com with ESMTP; 09 Dec 2015 15:50:34 -0800", "from jahay1-mobl2.amr.corp.intel.com (HELO\n\tlocalhost.localdomain.localdomain) ([134.134.176.79])\n\tby orsmga002.jf.intel.com with ESMTP; 09 Dec 2015 15:50:33 -0800" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.20,405,1444719600\"; d=\"scan'208\";a=\"868414322\"", "From": "Joshua Hay <joshua.a.hay@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Wed, 9 Dec 2015 15:50:30 -0800", "Message-Id": "<1449705033-4968-11-git-send-email-joshua.a.hay@intel.com>", "X-Mailer": "git-send-email 2.1.0", "In-Reply-To": "<1449705033-4968-1-git-send-email-joshua.a.hay@intel.com>", "References": "<1449705033-4968-1-git-send-email-joshua.a.hay@intel.com>", "Subject": "[Intel-wired-lan] [next PATCH S23 10/13] i40evf: null out ring\n\tpointers on free", "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": "From: Mitch Williams <mitch.a.williams@intel.com>\n\nSince we check these ring pointers to make sure we don't double-allocate\nor double-free the rings, we had better null them out after we free\nthem. In very rare cases this can cause a panic if the driver is removed\nduring reset recovery.\n\nSigned-off-by: Mitch Williams <mitch.a.williams@intel.com>\nChange-ID: Ib06eb4910a3058275c8f7ec5ef7f45baa4674f96\n---\n drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 ++\n 1 file changed, 2 insertions(+)", "diff": "diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c\nindex d859045..c7f98e7 100644\n--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c\n+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c\n@@ -1122,7 +1122,9 @@ static void i40evf_free_queues(struct i40evf_adapter *adapter)\n \tif (!adapter->vsi_res)\n \t\treturn;\n \tkfree(adapter->tx_rings);\n+\tadapter->tx_rings = NULL;\n \tkfree(adapter->rx_rings);\n+\tadapter->rx_rings = NULL;\n }\n \n /**\n", "prefixes": [ "next", "S23", "10/13" ] }