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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 8E387C43331 for ; Thu, 5 Sep 2019 20:34:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B3EC820828 for ; Thu, 5 Sep 2019 20:34:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391644AbfIEUeL (ORCPT ); Thu, 5 Sep 2019 16:34:11 -0400 Received: from mga06.intel.com ([134.134.136.31]:45332 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388090AbfIEUeL (ORCPT ); Thu, 5 Sep 2019 16:34:11 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Sep 2019 13:34:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,471,1559545200"; d="scan'208";a="267136536" Received: from jtkirshe-desk1.jf.intel.com ([134.134.177.96]) by orsmga001.jf.intel.com with ESMTP; 05 Sep 2019 13:34:10 -0700 From: Jeff Kirsher To: davem@davemloft.net Cc: Anirudh Venkataramanan , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, Andrew Bowers , Jeff Kirsher Subject: [net-next 03/16] ice: Check root pointer for validity Date: Thu, 5 Sep 2019 13:33:53 -0700 Message-Id: <20190905203406.4152-4-jeffrey.t.kirsher@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190905203406.4152-1-jeffrey.t.kirsher@intel.com> References: <20190905203406.4152-1-jeffrey.t.kirsher@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Anirudh Venkataramanan ice_sched_get_tc_node uses pi->root without checking for NULL. Add a check to prevent NULL pointer dereference. Signed-off-by: Anirudh Venkataramanan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index 79d64f9ed609..fc624b73d05d 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -284,7 +284,7 @@ struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc) { u8 i; - if (!pi) + if (!pi || !pi->root) return NULL; for (i = 0; i < pi->root->num_children; i++) if (pi->root->children[i]->tc_num == tc) -- 2.21.0