From: Jiri Kosina <jkosina@suse.cz>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: iceberg <strakh@ispras.ru>, Vojtech Pavlik <vojtech@suse.cz>,
Linux Kernlel Mailing List <linux-kernel@vger.kernel.org>,
linux-input@vger.kernel.org
Subject: Re: [BUG] ati_remote2.c: possible mutex_lock without mutex_unlock
Date: Wed, 14 Oct 2009 09:16:31 +0200 (CEST) [thread overview]
Message-ID: <alpine.LSU.2.00.0910140915440.8582@wotan.suse.de> (raw)
In-Reply-To: <20091014071428.GA5318@core.coreip.homeip.net>
On Wed, 14 Oct 2009, Dmitry Torokhov wrote:
> > > From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> > >
> > > input_devices_seq_start() uses mutex_lock_interruptible() to acquire
> > > the input_mutex, but doesn't properly handle the situation when the
> > > call fails (for example due to interrupt). Instead of returning NULL
> > > (which indicates that there is no more data) we should return
> > > ERR_PTR()-encoded error.
> > >
> > > We also need explicit flag indicating whether input_mutex was acquired
> > > since input_devices_seq_stop() is called whether input_devices_seq_start()
> > > was successful or not.
> > >
> > > The same applies to input_handlers_seq_start().
> > >
> > > Reported-by: iceberg <strakh@ispras.ru>
> > > Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
> >
> > Yup, looks OK to me.
>
> Putting you as "Reviewed-by.." then, OK?
Sure, feel free to do that.
Thanks,
--
Jiri Kosina
SUSE Labs, Novell Inc.
prev parent reply other threads:[~2009-10-14 7:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-13 17:52 [BUG] ati_remote2.c: possible mutex_lock without mutex_unlock iceberg
2009-10-13 15:43 ` Jiri Kosina
2009-10-14 6:29 ` Dmitry Torokhov
2009-10-14 7:11 ` Jiri Kosina
2009-10-14 7:14 ` Dmitry Torokhov
2009-10-14 7:16 ` Jiri Kosina [this message]
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