From: Wolfram Sang <wsa@the-dreams.de>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Jean Delvare <jdelvare@suse.com>,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
gregkh@linuxfoundation.org, Johan Hovold <johan@kernel.org>,
Alex Elder <elder@linaro.org>
Subject: Re: [PATCH 1/2] i2c-dev: don't get i2c adapter via i2c_dev
Date: Fri, 8 Jul 2016 10:31:54 +0900 [thread overview]
Message-ID: <20160708013152.GA10192@tetsubishi> (raw)
In-Reply-To: <c2ac0349b818d3f3787b939d5eb83e3c80fc205d.1467772840.git.viresh.kumar@linaro.org>
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On Tue, Jul 05, 2016 at 07:57:06PM -0700, Viresh Kumar wrote:
> There is no code protecting i2c_dev to be freed after it is returned
> from i2c_dev_get_by_minor() and using it to access the value which we
> already have (minor) isn't safe really.
>
> Avoid using it and get the adapter directly from 'minor'.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Applied to for-next, thanks!
Jean, thanks for providing the background information! That was exactly
the missing piece for me.
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next prev parent reply other threads:[~2016-07-08 1:31 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-06 2:57 [PATCH 0/2] i2c-dev: Don't let userspace block adapter Viresh Kumar
2016-07-06 2:57 ` [PATCH 1/2] i2c-dev: don't get i2c adapter via i2c_dev Viresh Kumar
2016-07-06 17:04 ` Jean Delvare
2016-07-06 17:07 ` Viresh Kumar
2016-07-07 13:16 ` Jean Delvare
2016-07-07 15:35 ` Viresh Kumar
2016-07-08 1:31 ` Wolfram Sang [this message]
2016-07-06 2:57 ` [PATCH 2/2] i2c-dev: Don't block the adapter from unregistering Viresh Kumar
2016-07-06 4:32 ` kbuild test robot
2016-07-06 6:55 ` Wolfram Sang
2016-07-06 13:50 ` Viresh Kumar
2016-07-06 17:12 ` Jean Delvare
2016-07-06 20:55 ` Viresh Kumar
2016-07-11 12:22 ` Jean Delvare
2016-07-11 21:50 ` Greg KH
2016-07-18 20:20 ` Viresh Kumar
2016-07-25 9:39 ` Jean Delvare
2016-07-25 22:31 ` Viresh Kumar
2016-07-26 7:41 ` Jean Delvare
2016-07-26 15:18 ` Dmitry Torokhov
2016-07-06 8:22 ` Peter Rosin
2016-07-06 14:33 ` Viresh Kumar
2016-07-06 14:43 ` Lars-Peter Clausen
2016-07-06 15:04 ` Peter Rosin
2016-07-06 15:37 ` Viresh Kumar
2016-07-06 15:35 ` Viresh Kumar
2016-07-06 14:41 ` [PATCH 0/2] i2c-dev: Don't let userspace block adapter Lars-Peter Clausen
2016-07-06 15:34 ` Viresh Kumar
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