linux-kernel - RE: [RFC][PATCH v3 2/3] efi_pstore: Introducing workqueue updating sysfs entries

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Message-ID: <A5ED84D3BB3A384992CBB9C77DEDA4D413806E4C@USINDEM103.corp.hds.com>
Date:	Tue, 21 Aug 2012 19:24:09 +0000
From:	Seiji Aguchi <seiji.aguchi@....com>
To:	Mike Waychison <mikew@...gle.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Luck, Tony (tony.luck@...el.com)" <tony.luck@...el.com>,
	"Matthew Garrett (mjg@...hat.com)" <mjg@...hat.com>,
	"dzickus@...hat.com" <dzickus@...hat.com>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Satoru Moriya <satoru.moriya@....com>
Subject: RE: [RFC][PATCH v3 2/3] efi_pstore: Introducing workqueue updating
 sysfs entries

> >  efivars_exit(void)
> >  {
> >         if (efi_enabled) {
> > +               cancel_work_sync(&efivar_work);
> 
> Please move this cancel_work_sync() to be before the efi_enabled test.
>  efi_enabled here means that we registered __efivars.  There may be another driver (gsmi) using the efivars code, so we should
> always be cancelling this work.
> 

OK. I will fix it.
I confirmed that gsmi accually called register_efivars().
Thank you for letting me know about this.

Seiji
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