linux-kernel - Re: [PATCH][next] Input: iqs5xx: Ensure error

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Date:   Thu, 28 Jan 2021 08:39:46 -0600
From:   Jeff LaBundy <jeff@...undy.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] Input: iqs5xx: Ensure error_bl is initialized on
 error exit path

Hi Colin,

On Thu, Jan 28, 2021 at 12:19:03PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently if the call to qs5xx_fw_file_parse fails the error return
> exit path will read the uninitialized variable error_bl. Fix this
> by ensuring error_bl is initialized to zero.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 2539da6677b6 ("Input: iqs5xx - preserve bootloader errors")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

This was fixed in [1]; it just needs pushed.

[1] https://patchwork.kernel.org/patch/12043701

> ---
>  drivers/input/touchscreen/iqs5xx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c
> index 05e0c6ff217b..54f30038dca4 100644
> --- a/drivers/input/touchscreen/iqs5xx.c
> +++ b/drivers/input/touchscreen/iqs5xx.c
> @@ -852,7 +852,7 @@ static int iqs5xx_fw_file_parse(struct i2c_client *client,
>  static int iqs5xx_fw_file_write(struct i2c_client *client, const char *fw_file)
>  {
>  	struct iqs5xx_private *iqs5xx = i2c_get_clientdata(client);
> -	int error, error_bl;
> +	int error, error_bl = 0;
>  	u8 *pmap;
>  
>  	if (iqs5xx->bl_status == IQS5XX_BL_STATUS_NONE)
> -- 
> 2.29.2
> 

Kind regards,
Jeff LaBundy