block: remove the blk_execute_rq return value

[Bart Van Assche]

On Tue, 2017-04-18 at 08:52 -0700, Christoph Hellwig wrote:
> diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
> index b05e151c9b38..82c6d02193ae 100644
> --- a/drivers/block/paride/pd.c
> +++ b/drivers/block/paride/pd.c
> @@ -747,7 +747,8 @@ static int pd_special_command(struct pd_unit *disk,
>  
>  	rq->special = func;
>  
> -	err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0);
> +	blk_execute_rq(disk->gd->queue, disk->gd, rq, 0);
> +	err = req->errors ? -EIO : 0;
>  
>  	blk_put_request(rq);
>  	return err;

Hello Christoph,

Sorry that I hadn't noticed this before but shouldn't "req" be changed into
"rq"? Otherwise this patch looks fine to me. If this comment gets addressed
you can add:

Reviewed-by: Bart Van Assche <bart.vanassche at sandisk.com>