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Message-Id: <1347616297-3339-1-git-send-email-navinp@cdac.in> Date: Fri, 14 Sep 2012 15:21:37 +0530 From: navin patidar <navinp@...c.in> To: gregkh@...uxfoundation.org, mfm@...eddisk.com Cc: linux-usb@...r.kernel.org, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org, navin patidar <navinp@...c.in> Subject: [PATCH] staging: usbip: vhci_hcd: Fixed oops during removal of vhci_hcd 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 <navinp@...c.in> --- drivers/staging/usbip/vhci_hcd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c index 6076f42..b1f427c 100644 --- a/drivers/staging/usbip/vhci_hcd.c +++ b/drivers/staging/usbip/vhci_hcd.c @@ -858,6 +858,9 @@ static void vhci_device_reset(struct usbip_device *ud) if (vdev->udev) usb_put_dev(vdev->udev); vdev->udev = NULL; + /* Reset kernel thread pointers */ + ud->tcp_rx = NULL; + ud->tcp_tx = NULL; ud->tcp_socket = NULL; ud->status = VDEV_ST_NULL; -- 1.7.9.5 ------------------------------------------------------------------------------------------------------------------------------- This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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