Re: [PATCH v2 2/3] drivers: hv: vmbus: add test attributes to debugfs

[Branden Bonaby <brandonbonaby94@gmail.com>]

On Mon, Aug 19, 2019 at 10:44:48PM -0400, Branden Bonaby wrote:
> Expose the test parameters as part of the debugfs channel attributes.
> We will control the testing state via these attributes.
> 
> Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
> ---
> Changes in v2:
>  - Move test attributes to debugfs.
>  - Wrap test code under #ifdef statements.
>  - Add new documentation file under Documentation/ABI/testing.
>  - Make commit message reflect the change from from sysfs to debugfs.
>  
> 
> +		if (IS_ERR_OR_NULL(dev_root)) {
> +			pr_debug("debugfs_hyperv: %s/%s/ not created\n",
> +				 TESTING, device);
> +			return PTR_ERR(dev_root);
> +		}

Whoops, that single IS_ERR_OR_NULL shouldn't be there, it should just
be IS_ERR I'll change and resend the patch.