linux-kernel - RE: [char-misc-next 4/5] mei: nfc: clean nfc internal struct on host exit

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Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B1C379CCB@HASMSX106.ger.corp.intel.com>
Date:	Sun, 20 Jul 2014 06:30:16 +0000
From:	"Winkler, Tomas" <tomas.winkler@...el.com>
To:	Greg KH <gregkh@...uxfoundation.org>
CC:	"arnd@...db.de" <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Usyskin, Alexander" <alexander.usyskin@...el.com>
Subject: RE: [char-misc-next 4/5] mei: nfc: clean nfc internal struct on
 host exit

> > @@ -553,6 +553,7 @@ void mei_nfc_host_exit(struct mei_device *dev)
> >  {
> >  	struct mei_nfc_dev *ndev = &nfc_dev;
> >  	cancel_work_sync(&ndev->init_work);
> > +	memset(ndev, 0, sizeof(struct mei_nfc_dev));
> 
> This implies that something is using a "static" device structure, which
> isn't allowed by the driver core.  So please fix the root cause here,
> don't paper over the bug.
>
You are partially correct as this is not the 'struct device' it just a nfc singleton in any case it is not really nice
and  we have the fix in queue but it is rather extensive rework and  I guess it won't be suitable for stable
so hence this one liner fix.

Thanks
Tomas
 

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