linux-kernel - Re: [PATCH] staging: usbip: vhci_hcd: Fixed oops during removal of vhci

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Date:	Tue, 18 Sep 2012 10:42:39 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	navin patidar <navinp@...c.in>
Cc:	gregkh@...uxfoundation.org, mfm@...eddisk.com,
	devel@...verdev.osuosl.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: usbip: vhci_hcd: Fixed oops during removal of
 vhci_hcd

On Tue, Sep 18, 2012 at 10:16:56AM +0530, navin patidar wrote:
> 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.
> 

Obviously, the same question would apply here.  Why don't you do
this in the shutdown function?

regards,
dan carpenter

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