linux-kernel - Re: [Regression, post-3.5] NULL pointer dereference in usb-wwan after resume from system suspend

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Message-ID: <20120811225609.GA20031@kroah.com>
Date:	Sat, 11 Aug 2012 15:56:09 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-usb@...r.kernel.org, Matthias Urlichs <smurf@...rf.noris.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [Regression, post-3.5] NULL pointer dereference in usb-wwan
 after resume from system suspend

On Sun, Aug 12, 2012 at 12:39:19AM +0200, Rafael J. Wysocki wrote:
> Hi,
> 
> The usb-wwan driver triggers a NULL pointer dereference oops after resume
> from system suspend on my Toshiba Portege R500, but since that driver
> hasn't changed since v3.5 and it is only used by the option driver, I suppose
> that the latter is responsible for that.
> 
> This is a clear regression from v3.5, it hasn't happened ever before.
> 
> I'll collect some details tomorrow.

Known bug, we have a fix for it in the usb-next tree now, it will be
going to Linus in a few days.

If you want, I can dig up the patch for it and send it to you, if it's
stopping other things from working for you at the moment.

thanks,

greg k-h
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