linux-kernel - Re: [PATCH] usb: gadget: mv_u3d_core: fix violation of locking discipline in mv_u3d_ep

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Message-ID: <20130725173017.GK25415@radagast>
Date:	Thu, 25 Jul 2013 20:30:17 +0300
From:	Felipe Balbi <balbi@...com>
To:	Alexey Khoroshilov <khoroshilov@...ras.ru>
CC:	Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<ldv-project@...uxtesting.org>
Subject: Re: [PATCH] usb: gadget: mv_u3d_core: fix violation of locking
 discipline in mv_u3d_ep_disable()

Hi,

On Wed, Jul 24, 2013 at 12:20:17AM +0400, Alexey Khoroshilov wrote:
> mv_u3d_nuke() expects to be calles with ep->u3d->lock held,
> because mv_u3d_done() does. But mv_u3d_ep_disable() calls it
> without lock that can lead to unpleasant consequences.
> 
> Found by Linux Driver Verification project (linuxtesting.org).
> 
> Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>

which commit introduced the bug ? Which kernels are affected by this bug ?

-- 
balbi

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