linux-kernel - Re: [PATCH] PNP: pnpbios: Use PTR_ERR_OR

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Date:   Wed, 29 Nov 2017 21:55:23 +0100
From:   Jean Delvare <jdelvare@...e.de>
To:     Vasyl Gomonovych <gomonovych@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PNP: pnpbios: Use PTR_ERR_OR_ZERO()

On Wed, 29 Nov 2017 17:20:57 +0100, Vasyl Gomonovych wrote:
> Fix ptr_ret.cocci warnings:
> drivers/pnp/pnpbios/core.c:584:1-3: WARNING: PTR_ERR_OR_ZERO can be used
> 
> Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
> 
> Generated by: scripts/coccinelle/api/ptr_ret.cocci
> 
> Signed-off-by: Vasyl Gomonovych <gomonovych@...il.com>
> ---
>  drivers/pnp/pnpbios/core.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
> index e681140b85d8..077f334fdbae 100644
> --- a/drivers/pnp/pnpbios/core.c
> +++ b/drivers/pnp/pnpbios/core.c
> @@ -581,10 +581,7 @@ static int __init pnpbios_thread_init(void)
>  
>  	init_completion(&unload_sem);
>  	task = kthread_run(pnp_dock_thread, NULL, "kpnpbiosd");
> -	if (IS_ERR(task))
> -		return PTR_ERR(task);
> -
> -	return 0;
> +	return PTR_ERR_OR_ZERO(task);
>  }
>  
>  /* Start the kernel thread later: */

Looks good to me.

Reviewed-by: Jean Delvare <jdelvare@...e.de>

-- 
Jean Delvare
SUSE L3 Support