From owner-svn-src-stable-10@FreeBSD.ORG Thu May 21 06:56:35 2015 Return-Path: Delivered-To: svn-src-stable-10@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E91C624B; Thu, 21 May 2015 06:56:35 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D65D11980; Thu, 21 May 2015 06:56:35 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t4L6uZsL000165; Thu, 21 May 2015 06:56:35 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t4L6uZtE000164; Thu, 21 May 2015 06:56:35 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201505210656.t4L6uZtE000164@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Thu, 21 May 2015 06:56:35 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r283175 - stable/10/sys/ofed/drivers/net/mlx4 X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-10@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for only the 10-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 May 2015 06:56:36 -0000 Author: hselasky Date: Thu May 21 06:56:35 2015 New Revision: 283175 URL: https://svnweb.freebsd.org/changeset/base/283175 Log: MFC r282817: Apply proper locking when iterating the multicast addresses and add a missing check for NULL from a non-blocking "kzalloc()" function call. Sponsored by: Mellanox Technologies Modified: stable/10/sys/ofed/drivers/net/mlx4/en_netdev.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/ofed/drivers/net/mlx4/en_netdev.c ============================================================================== --- stable/10/sys/ofed/drivers/net/mlx4/en_netdev.c Thu May 21 06:53:55 2015 (r283174) +++ stable/10/sys/ofed/drivers/net/mlx4/en_netdev.c Thu May 21 06:56:35 2015 (r283175) @@ -650,6 +650,7 @@ static void mlx4_en_cache_mclist(struct struct mlx4_en_mc_list *tmp; struct mlx4_en_priv *priv = netdev_priv(dev); + if_maddr_rlock(dev); TAILQ_FOREACH(ifma, &dev->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; @@ -658,10 +659,13 @@ static void mlx4_en_cache_mclist(struct continue; /* Make sure the list didn't grow. */ tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC); + if (tmp == NULL) + break; memcpy(tmp->addr, LLADDR((struct sockaddr_dl *)ifma->ifma_addr), ETH_ALEN); list_add_tail(&tmp->list, &priv->mc_list); } + if_maddr_runlock(dev); } static void update_mclist_flags(struct mlx4_en_priv *priv,