linux-kernel - Re: [PATCH 06/11] gpio: em: do not discard em_gio_irq_domain

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Message-Id: <201208101133.08945.arnd@arndb.de>
Date:	Fri, 10 Aug 2012 11:33:08 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, arm@...nel.org,
	linux-kernel@...r.kernel.org, Magnus Damm <damm@...nsource.se>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [PATCH 06/11] gpio: em: do not discard em_gio_irq_domain_cleanup

On Friday 10 August 2012, Linus Walleij wrote:
> On Wed, Aug 8, 2012 at 4:47 PM, Arnd Bergmann <arnd@...db.de> wrote:
> 
> > The newly added gpio-em driver marks its em_gio_irq_domain_cleanup
> > function as __devexit, which would lead to that function being
> > discarded in case CONFIG_HOTPLUG is disabled. However, the function
> > is also called by the error handling logic em_gio_probe, which
> > would cause a jump into a NULL pointer if it was removed from the
> > kernel or module.
> 
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
> 
> Will you push this through the ARM SoC tree or do you want me
> to apply it to my GPIO tree?

I'm about to send out the whole series to Torvalds, so I'll just
keep it in now.

	Arnd
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