netdev - Re: [PATCH net-next] netdevsim: remove check on return value of debugfs_create

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Date:   Thu, 7 Dec 2017 18:47:31 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
Cc:     "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] netdevsim: remove check on return value of
 debugfs_create_dir

On Fri,  8 Dec 2017 11:14:56 +0900, Prashant Bhole wrote:
> Initial discussion started about correct handling of this condition.
> Later it was decided to remove this check altogether to make it
> consistent.
> 
> Removal of this check isn't fatal to this driver.
> 
> Signed-off-by: Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>

Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

but as I mentioned there is another, similar check in netdevsim/bpf.c:
"... drop this error handling here and in nsim_bpf_create_prog()."

> diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
> index eb8c679fca9f..6d4b35f26ae5 100644
> --- a/drivers/net/netdevsim/netdev.c
> +++ b/drivers/net/netdevsim/netdev.c
> @@ -469,8 +469,6 @@ static int __init nsim_module_init(void)
>  	int err;
>  
>  	nsim_ddir = debugfs_create_dir(DRV_NAME, NULL);
> -	if (IS_ERR(nsim_ddir))
> -		return PTR_ERR(nsim_ddir);
>  
>  	err = bus_register(&nsim_bus);
>  	if (err)