linux-kernel - Re: [PATCH] power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check

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Message-ID: <20170829084518.l5dk3yfflgiagv7g@earth>
Date:   Tue, 29 Aug 2017 10:45:18 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:     linux-pm@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] power: supply: core: Delete two error messages for a
 failed memory allocation in power_supply_check_supplies()

Hi,

On Sat, Aug 26, 2017 at 07:37:00PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sat, 26 Aug 2017 19:22:32 +0200
> 
> Omit extra messages for a memory allocation failure in this function.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---

Thanks, queued.

-- Sebastian

>  drivers/power/supply/power_supply_core.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
> index 540d3e0aa011..3d46863baa52 100644
> --- a/drivers/power/supply/power_supply_core.c
> +++ b/drivers/power/supply/power_supply_core.c
> @@ -259,18 +259,14 @@ static int power_supply_check_supplies(struct power_supply *psy)
>  	/* All supplies found, allocate char ** array for filling */
>  	psy->supplied_from = devm_kzalloc(&psy->dev, sizeof(psy->supplied_from),
>  					  GFP_KERNEL);
> -	if (!psy->supplied_from) {
> -		dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
> +	if (!psy->supplied_from)
>  		return -ENOMEM;
> -	}
>  
>  	*psy->supplied_from = devm_kzalloc(&psy->dev,
>  					   sizeof(char *) * (cnt - 1),
>  					   GFP_KERNEL);
> -	if (!*psy->supplied_from) {
> -		dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
> +	if (!*psy->supplied_from)
>  		return -ENOMEM;
> -	}
>  
>  	return power_supply_populate_supplied_from(psy);
>  }
> -- 
> 2.14.0
> 

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