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Re: [PATCH next 1/2] media: mtk-mdp: fix video_device_release argument

From Hans Verkuil <hverkuil@xs4all.nl>
Newsgroups linux.kernel
Subject Re: [PATCH next 1/2] media: mtk-mdp: fix video_device_release argument
Date 2016-11-03 13:50 +0100
Message-ID <szpCV-3Ud-19@gated-at.bofh.it> (permalink)
References <sf7pg-6h3-19@gated-at.bofh.it> <swZtg-6Gr-23@gated-at.bofh.it> <sxaf0-5mE-37@gated-at.bofh.it>
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Hi Vincent,

On 28/10/16 09:52, Vincent Stehlé wrote:
> On Thu, Oct 27, 2016 at 10:23:24PM +0200, Vincent Stehlé wrote:
>> video_device_release() takes a pointer to struct video_device as argument.
>> Fix two call sites where the address of the pointer is passed instead.
>
> Sorry, I messed up: please ignore that "fix". The 0day robot made me
> realize this is indeed not a proper fix.
>
> The issue remains, though: we cannot call video_device_release() on the
> vdev structure member, as this will in turn call kfree(). Most probably,
> vdev needs to be dynamically allocated, or the call to
> video_device_release() dropped completely.

I prefer that vdev is dynamically allocated. There are known problems with
embedded video_device structs, so allocating it is preferred.

Minghsiu, can you do that?

Regards,

	Hans

>
> Sorry for the bad patch.
>
> Best regards,
>
> Vincent.
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Thread

[PATCH next 1/2] media: mtk-mdp: fix video_device_release argument Vincent Stehlé <vincent.stehle@laposte.net> - 2016-10-27 22:50 +0200
  Re: [PATCH next 1/2] media: mtk-mdp: fix video_device_release  argument Vincent Stehlé <vincent.stehle@laposte.net> - 2016-10-28 10:00 +0200
    Re: [PATCH next 1/2] media: mtk-mdp: fix video_device_release  argument Hans Verkuil <hverkuil@xs4all.nl> - 2016-11-03 13:50 +0100
      Re: [PATCH next 1/2] media: mtk-mdp: fix video_device_release  argument Minghsiu Tsai <minghsiu.tsai@mediatek.com> - 2016-11-07 13:50 +0100

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