linux-kernel - Re: [Xen-devel] [PATCH] xenfb: connect to backend before registering fb

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Message-ID: <87k50oqp2t.fsf@pike.pond.sub.org>
Date:	Fri, 28 Aug 2009 11:12:42 +0200
From:	Markus Armbruster <armbru@...hat.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Xen-devel <xen-devel@...ts.xensource.com>,
	Michal Schmidt <mschmidt@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH] xenfb: connect to backend before registering fb

Jeremy Fitzhardinge <jeremy@...p.org> writes:

> As soon as the framebuffer is registered, our methods may be called by the
> kernel. This leads to a crash as xenfb_refresh() gets called before we have
> the irq.
>
> Connect to the backend before registering our framebuffer with the kernel.
>
> [ Fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14059 ]
>
> Signed-off-by: Michal Schmidt <mschmidt@...hat.com>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

Looks good to me.
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