linux-kernel - Re: [PATCH] usb-gadget: unlock data->lock mutex on error path in ep

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Date:	Thu, 26 May 2011 13:59:57 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	Alexey Khoroshilov <khoroshilov@...ras.ru>
CC:	Greg KH <greg@...ah.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb-gadget: unlock data->lock mutex on error path in
 ep_write()

Hello.

On 26-05-2011 10:32, Alexey Khoroshilov wrote:

> ep_write() acquires data->lock mutex in get_ready_ep() and releases it on
> all paths except for one: when usb_endpoint_xfer_isoc() failed. The
> patch adds mutex_unlock(&data->lock) at that path.

> It is similar to commit 00cc7a5faf25b3ba5cf30fcffc62249bdd152006 for ep_read(),

    Please specify that commit's summary in parens.

> it was not fixed at that time by accident.

> Found by Linux Driver Verification project (linuxtesting.org).

> Signed-off-by: Alexey Khoroshilov<khoroshilov@...ras.ru>

WBR, Sergei
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