netdev - Re: [PATCH] at91ether: return PTR_ERR if call to clk

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Date:	Thu, 20 Sep 2012 09:42:14 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Devendra Naga <devendra.aaru@...il.com>, <netdev@...r.kernel.org>,
	"David Miller" <davem@...emloft.net>
CC:	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] at91ether: return PTR_ERR if call to clk_get fails

On 09/20/2012 09:04 AM, Devendra Naga :
> we are currently returning ENODEV, as the clk_get may give a exact
> error code in its returned pointer, assign it to the ret by using the
> PTR_ERR function, so that the subsequent goto label will jump to the
> error path and clean the driver and return the error correctly.
> 
> Signed-off-by: Devendra Naga <devendra.aaru@...il.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

Thanks,

> ---
>  drivers/net/ethernet/cadence/at91_ether.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
> index 7788419..4e980a7 100644
> --- a/drivers/net/ethernet/cadence/at91_ether.c
> +++ b/drivers/net/ethernet/cadence/at91_ether.c
> @@ -1086,7 +1086,7 @@ static int __init at91ether_probe(struct platform_device *pdev)
>  	/* Clock */
>  	lp->ether_clk = clk_get(&pdev->dev, "ether_clk");
>  	if (IS_ERR(lp->ether_clk)) {
> -		res = -ENODEV;
> +		res = PTR_ERR(lp->ether_clk);
>  		goto err_ioumap;
>  	}
>  	clk_enable(lp->ether_clk);
> 


-- 
Nicolas Ferre
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