Re: [PATCH 4/4] zram: add init_done() guard to algorithm_params_store()

[Sergey Senozhatsky]

On (26/04/07 08:38), Andrew Stellman wrote:
> @@ -1772,6 +1772,12 @@ static ssize_t algorithm_params_store(struct device *dev,
>  	if (prio < ZRAM_PRIMARY_COMP || prio >= ZRAM_MAX_COMPS)
>  		return -EINVAL;
>  
> +	guard(rwsem_write)(&zram->dev_lock);
> +	if (init_done(zram)) {
> +		pr_info("Can't change algorithm params for initialized device\n");
> +		return -EBUSY;
> +	}
> +
>  	ret = comp_params_store(zram, prio, level, dict_path, &deflate_params);
>  	return ret ? ret : len;
>  }

This is already fixed.