linux-kernel - Re: [REGRESSION] component: add support for releasing match data

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Message-ID: <56A79CF2.4010200@linux.intel.com>
Date:	Tue, 26 Jan 2016 17:21:06 +0100
From:	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Intel Graphics Development <intel-gfx@...ts.freedesktop.org>
Subject: Re: [REGRESSION] component: add support for releasing match data

Op 26-01-16 om 15:48 schreef Russell King - ARM Linux:
> On Tue, Jan 26, 2016 at 03:28:34PM +0100, Maarten Lankhorst wrote:
>> Something similar to a segfault. It's trying to call 0x6b6b6b6b6b which
>> is POISON_FREE.
>>
>> mc appears to be freed already, so calling mc->release would jump to
>> invalid data.
> It seems that my devm foo wasn't quite up to scratch.  Quite why it
> doesn't show here while testing it (I have patches for the etnaviv
> GPU driver, which I'm regularly inserting/removing) I'm not sure.
>
> Please test this patch - it seems "no worse" for me (in that it didn't
> crash before, and it still doesn't crash.)
That one works, thanks. :)

~Maarten