From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752639AbaHRJes (ORCPT ); Mon, 18 Aug 2014 05:34:48 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:42712 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752596AbaHRJeq (ORCPT ); Mon, 18 Aug 2014 05:34:46 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Sowmini Varadhan , "David S. Miller" , Luis Henriques Subject: [PATCH 3.11 056/137] sunvnet: clean up objects created in vnet_new() on vnet_exit() Date: Mon, 18 Aug 2014 10:31:57 +0100 Message-Id: <1408354398-10226-57-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1408354398-10226-1-git-send-email-luis.henriques@canonical.com> References: <1408354398-10226-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.15 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Sowmini Varadhan commit a4b70a07ed12a71131cab7adce2ce91c71b37060 upstream. Nothing cleans up the objects created by vnet_new(), they are completely leaked. vnet_exit(), after doing the vio_unregister_driver() to clean up ports, should call a helper function that iterates over vnet_list and cleans up those objects. This includes unregister_netdevice() as well as free_netdev(). Signed-off-by: Sowmini Varadhan Acked-by: Dave Kleikamp Reviewed-by: Karl Volz Signed-off-by: David S. Miller Signed-off-by: Luis Henriques --- drivers/net/ethernet/sun/sunvnet.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index 3df56840a3b9..398faff8be7a 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -1083,6 +1083,24 @@ static struct vnet *vnet_find_or_create(const u64 *local_mac) return vp; } +static void vnet_cleanup(void) +{ + struct vnet *vp; + struct net_device *dev; + + mutex_lock(&vnet_list_mutex); + while (!list_empty(&vnet_list)) { + vp = list_first_entry(&vnet_list, struct vnet, list); + list_del(&vp->list); + dev = vp->dev; + /* vio_unregister_driver() should have cleaned up port_list */ + BUG_ON(!list_empty(&vp->port_list)); + unregister_netdev(dev); + free_netdev(dev); + } + mutex_unlock(&vnet_list_mutex); +} + static const char *local_mac_prop = "local-mac-address"; static struct vnet *vnet_find_parent(struct mdesc_handle *hp, @@ -1240,7 +1258,6 @@ static int vnet_port_remove(struct vio_dev *vdev) kfree(port); - unregister_netdev(vp->dev); } return 0; } @@ -1268,6 +1285,7 @@ static int __init vnet_init(void) static void __exit vnet_exit(void) { vio_unregister_driver(&vnet_port_driver); + vnet_cleanup(); } module_init(vnet_init); -- 1.9.1