From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753806Ab3JKXoD (ORCPT ); Fri, 11 Oct 2013 19:44:03 -0400 Received: from p3plsmtps2ded01.prod.phx3.secureserver.net ([208.109.80.58]:36100 "EHLO p3plsmtps2ded01.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752187Ab3JKXoB (ORCPT ); Fri, 11 Oct 2013 19:44:01 -0400 x-originating-ip: 72.167.245.219 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, jasowang@redhat.com Cc: "K. Y. Srinivasan" , , "[3.11+]"@linuxonhyperv.com Subject: [PATCH 1/1] Drivers: hv: vmbus: Fix a bug in channel rescind code Date: Fri, 11 Oct 2013 17:27:16 -0700 Message-Id: <1381537636-24889-1-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rescind of subchannels were not being correctly handled. Fix the bug. Signed-off-by: K. Y. Srinivasan Cc: [3.11+] --- drivers/hv/channel_mgmt.c | 8 ++------ 1 files changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index bbff5f2..eebf566 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -203,7 +203,8 @@ static void vmbus_process_rescind_offer(struct work_struct *work) struct vmbus_channel *primary_channel; struct vmbus_channel_relid_released msg; - vmbus_device_unregister(channel->device_obj); + if (channel->device_obj) + vmbus_device_unregister(channel->device_obj); memset(&msg, 0, sizeof(struct vmbus_channel_relid_released)); msg.child_relid = channel->offermsg.child_relid; msg.header.msgtype = CHANNELMSG_RELID_RELEASED; @@ -213,11 +214,6 @@ static void vmbus_process_rescind_offer(struct work_struct *work) spin_lock_irqsave(&vmbus_connection.channel_lock, flags); list_del(&channel->listentry); spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags); - } else { - primary_channel = channel->primary_channel; - spin_lock_irqsave(&primary_channel->sc_lock, flags); - list_del(&channel->listentry); - spin_unlock_irqrestore(&primary_channel->sc_lock, flags); } free_channel(channel); } -- 1.7.4.1