netdev - Re: [PATCH 07/10] net: ethernet: smsc: Handle return value of platform_get

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Date:   Sat, 2 Dec 2017 23:06:56 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Arvind Yadav <arvind.yadav.cs@...il.com>, wg@...ndegger.com,
        mkl@...gutronix.de, michal.simek@...inx.com, opendmb@...il.com,
        f.fainelli@...il.com, davem@...emloft.net,
        Vladislav.Zakharov@...opsys.com
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH 07/10] net: ethernet: smsc: Handle return value of
 platform_get_irq

On 12/02/2017 10:26 PM, Arvind Yadav wrote:

> platform_get_irq() can fail here and we must check its return value.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
> ---
>   drivers/net/ethernet/smsc/smc911x.c | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
> index 0515744..a1cf18c 100644
> --- a/drivers/net/ethernet/smsc/smc911x.c
> +++ b/drivers/net/ethernet/smsc/smc911x.c
> @@ -2088,6 +2088,11 @@ static int smc911x_drv_probe(struct platform_device *pdev)
>   
>   	ndev->dma = (unsigned char)-1;
>   	ndev->irq = platform_get_irq(pdev, 0);
> +	if (ndev->irq <= 0) {
> +		ret = ndev->irq ? ndev->irq : -ENODEV;

    Same comments as the next patch...

> +		goto release_both;
> +	}
> +
>   	lp = netdev_priv(ndev);
>   	lp->netdev = ndev;
>   #ifdef SMC_DYNAMIC_BUS_CONFIG

MBR, Sergei