linux-kernel - Re: [PATCH] drivers/media/rc: postpone kfree(rc

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Message-ID: <20160321092457.39435fb8@recife.lan>
Date:	Mon, 21 Mar 2016 09:24:57 -0300
From:	Mauro Carvalho Chehab <mchehab@....samsung.com>
To:	Max Kellermann <max@...mpel.org>
Cc:	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH] drivers/media/rc: postpone kfree(rc_dev)

Hi Max,

Em Mon, 21 Mar 2016 12:33:05 +0100
Max Kellermann <max@...mpel.org> escreveu:

> CONFIG_DEBUG_KOBJECT_RELEASE found this bug.

Please, always send us your Signed-off-by on your patches, as described at:
	https://linuxtv.org/wiki/index.php/Development:_Submitting_Patches#Developer.27s_Certificate_of_Origin_1.1



> ---
>  drivers/media/rc/rc-main.c |    7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
> index 1042fa3..cb3e8db 100644
> --- a/drivers/media/rc/rc-main.c
> +++ b/drivers/media/rc/rc-main.c
> @@ -1248,6 +1248,9 @@ unlock:
>  
>  static void rc_dev_release(struct device *device)
>  {
> +	struct rc_dev *dev = to_rc_dev(device);
> +
> +	kfree(dev);
>  }
>  
>  #define ADD_HOTPLUG_VAR(fmt, val...)					\
> @@ -1369,7 +1372,9 @@ void rc_free_device(struct rc_dev *dev)
>  
>  	put_device(&dev->dev);
>  
> -	kfree(dev);
> +	/* kfree(dev) will be called by the callback function
> +	   rc_dev_release() */
> +
>  	module_put(THIS_MODULE);
>  }
>  EXPORT_SYMBOL_GPL(rc_free_device);
> 
> --
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-- 
Thanks,
Mauro