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From: "John W. Linville" <linville@tuxdriver.com>
To: Christian Lamparter <chunkeey@web.de>
Cc: linux-wireless@vger.kernel.org,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [PATCH v2] p54usb: rewriting rx/tx routines to make use of usb_anchor's facilities
Date: Tue, 9 Dec 2008 09:35:30 -0500	[thread overview]
Message-ID: <20081209143530.GA3653@tuxdriver.com> (raw)
In-Reply-To: <200812091514.37634.chunkeey@web.de>

On Tue, Dec 09, 2008 at 03:14:37PM +0100, Christian Lamparter wrote:
> Alan Stern found several flaws in p54usb's implementation and annotat=
ed:=20
> "usb_kill_urb() and similar routines do not expect an URB's completio=
n
> routine to deallocate it. =A0This is almost obvious -- if the URB is =
deallocated
> before the completion routine returns then there's no way for usb_kil=
l_urb
> to detect when the URB actually is complete."
>=20
> This patch addresses all known limitations in the old implementation =
and fixes
> khub's "use-after-freed" hang, when SLUB debug's poisoning option is =
enabled.
>=20
> Signed-off-by: Christian Lamparter <chunkeey@web.de>
> Cc: stable@kernel.org

That's a big patch for so late in the cycle.  Is there a bugzilla open =
for it?

John
--=20
John W. Linville		Linux should be at the core
linville@tuxdriver.com			of your literate lifestyle.
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  reply	other threads:[~2008-12-09 14:45 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-09 14:14 [PATCH v2] p54usb: rewriting rx/tx routines to make use of usb_anchor's facilities Christian Lamparter
2008-12-09 14:35 ` John W. Linville [this message]
2008-12-09 14:46   ` Johannes Berg
2008-12-09 14:54     ` John W. Linville
2008-12-09 15:03       ` Johannes Berg
2008-12-09 15:16         ` Larry Finger
2008-12-09 15:07   ` Larry Finger
2008-12-09 15:45 ` Larry Finger
2008-12-09 16:11   ` Larry Finger

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