linux-kernel - Re: [PATCH] r6040: disable pci device if the subsequent calls (after pci_enable

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Message-ID: <1659482.3g1Zl6FDuM@flexo>
Date:	Tue, 29 May 2012 11:20:50 +0200
From:	Florian Fainelli <florian@...nwrt.org>
To:	Devendra Naga <devendra.aaru@...il.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] r6040: disable pci device if the subsequent calls (after pci_enable_device) fails

On Monday 28 May 2012 17:27:03 Devendra Naga wrote:
> the calls after the pci_enable_device may fail, and will error out with out
> disabling it. disable the device at error paths.

Looks good, thanks Devendra!

> 
> Signed-off-by: Devendra Naga <devendra.aaru@...il.com>

Acked-by: Florian Fainelli <florian@...nwrt.org>

> ---
>  drivers/net/ethernet/rdc/r6040.c |   10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/rdc/r6040.c 
b/drivers/net/ethernet/rdc/r6040.c
> index 4de7364..8f5079a 100644
> --- a/drivers/net/ethernet/rdc/r6040.c
> +++ b/drivers/net/ethernet/rdc/r6040.c
> @@ -1096,20 +1096,20 @@ static int __devinit r6040_init_one(struct pci_dev 
*pdev,
>  	if (err) {
>  		dev_err(&pdev->dev, "32-bit PCI DMA addresses"
>  				"not supported by the card\n");
> -		goto err_out;
> +		goto err_out_disable_dev;
>  	}
>  	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
>  	if (err) {
>  		dev_err(&pdev->dev, "32-bit PCI DMA addresses"
>  				"not supported by the card\n");
> -		goto err_out;
> +		goto err_out_disable_dev;
>  	}
>  
>  	/* IO Size check */
>  	if (pci_resource_len(pdev, bar) < io_size) {
>  		dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n");
>  		err = -EIO;
> -		goto err_out;
> +		goto err_out_disable_dev;
>  	}
>  
>  	pci_set_master(pdev);
> @@ -1117,7 +1117,7 @@ static int __devinit r6040_init_one(struct pci_dev 
*pdev,
>  	dev = alloc_etherdev(sizeof(struct r6040_private));
>  	if (!dev) {
>  		err = -ENOMEM;
> -		goto err_out;
> +		goto err_out_disable_dev;
>  	}
>  	SET_NETDEV_DEV(dev, &pdev->dev);
>  	lp = netdev_priv(dev);
> @@ -1238,6 +1238,8 @@ err_out_free_res:
>  	pci_release_regions(pdev);
>  err_out_free_dev:
>  	free_netdev(dev);
> +err_out_disable_dev:
> +	pci_disable_device(dev);
>  err_out:
>  	return err;
>  }
> -- 
> 1.7.9.5
> 
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