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Date:   Thu, 9 Apr 2020 12:52:53 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     Oliver Graute <oliver.graute@...il.com>
Cc:     dmitry.torokhov@...il.com,
        Oliver Graute <oliver.graute@...oconnector.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] Input: edt-ft5x06 - fix crash on EDT EP0110M09

Hi Oliver,

thanks for your patch.

On 20-04-09 11:27, Oliver Graute wrote:
> From: Oliver Graute <oliver.graute@...oconnector.com>

...

>  drivers/input/touchscreen/edt-ft5x06.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> index 06aa8ba0b6d7..6fbc87d041a1 100644
> --- a/drivers/input/touchscreen/edt-ft5x06.c
> +++ b/drivers/input/touchscreen/edt-ft5x06.c
> @@ -819,10 +819,6 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
>  	 * to have garbage in there
>  	 */
>  	memset(rdbuf, 0, sizeof(rdbuf));
> -	error = edt_ft5x06_ts_readwrite(client, 1, "\xBB",
> -					EDT_NAME_LEN - 1, rdbuf);
> -	if (error)
> -		return error;


I don't see how this call can corrupt the stack..

Regards,
  Marco

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