From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753773Ab2IRErq (ORCPT ); Tue, 18 Sep 2012 00:47:46 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:33124 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752599Ab2IRErp (ORCPT ); Tue, 18 Sep 2012 00:47:45 -0400 From: navin patidar To: gregkh@linuxfoundation.org, mfm@muteddisk.com Cc: linux-usb@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, navin patidar Subject: [PATCH] staging: usbip: vhci_hcd: Fixed oops during removal of vhci_hcd Date: Tue, 18 Sep 2012 10:16:56 +0530 Message-Id: <1347943616-5955-1-git-send-email-navinp@cdac.in> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In response to "usbip detach -p [port_number]" user command,vhci_shoutdown_connection gets executed which kills tcp_tx,tcp_rx kernel threads and then vhci_device_reset resets all usb_device struct variables except kernel thread pointers. so, at the time of vhci_hcd removal vhci_shoutdown_connection tries to kill kernel threads which are already killed. Signed-off-by: navin patidar --- drivers/staging/usbip/vhci_hcd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c index 12a9a5f..eea8298 100644 --- a/drivers/staging/usbip/vhci_hcd.c +++ b/drivers/staging/usbip/vhci_hcd.c @@ -859,6 +859,8 @@ static void vhci_device_reset(struct usbip_device *ud) usb_put_dev(vdev->udev); vdev->udev = NULL; + ud->tcp_rx = NULL; + ud->tcp_tx = NULL; ud->tcp_socket = NULL; ud->status = VDEV_ST_NULL; -- 1.7.9.5