netdev - Re: [PATCH -next-2.6] r6040: Free irq line on error path

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Date:	Wed, 25 Aug 2010 12:05:08 +0200
From:	Florian Fainelli <florian@...nwrt.org>
To:	Denis Kirjanov <dkirjanov@...nel.org>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH -next-2.6] r6040: Free irq line on error path

On Wednesday 25 August 2010 11:57:55 Denis Kirjanov wrote:
> Free irq line on error path.
> 
> Signed-off-by: Denis Kirjanov <dkirjanov@...nel.org>

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


> ---
>  drivers/net/r6040.c |   33 ++++++++++++++++++++-------------
>  1 files changed, 20 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
> index 7d482a2..dc54aff 100644
> --- a/drivers/net/r6040.c
> +++ b/drivers/net/r6040.c
> @@ -751,7 +751,7 @@ static int r6040_open(struct net_device *dev)
>  	ret = request_irq(dev->irq, r6040_interrupt,
>  		IRQF_SHARED, dev->name, dev);
>  	if (ret)
> -		return ret;
> +		goto out;
> 
>  	/* Set MAC address */
>  	r6040_mac_address(dev);
> @@ -759,30 +759,37 @@ static int r6040_open(struct net_device *dev)
>  	/* Allocate Descriptor memory */
>  	lp->rx_ring =
>  		pci_alloc_consistent(lp->pdev, RX_DESC_SIZE, &lp->rx_ring_dma);
> -	if (!lp->rx_ring)
> -		return -ENOMEM;
> +	if (!lp->rx_ring) {
> +		ret = -ENOMEM;
> +		goto err_free_irq;
> +	}
> 
>  	lp->tx_ring =
>  		pci_alloc_consistent(lp->pdev, TX_DESC_SIZE, &lp->tx_ring_dma);
>  	if (!lp->tx_ring) {
> -		pci_free_consistent(lp->pdev, RX_DESC_SIZE, lp->rx_ring,
> -				     lp->rx_ring_dma);
> -		return -ENOMEM;
> +		ret = -ENOMEM;
> +		goto err_free_rx_ring;
>  	}
> 
>  	ret = r6040_up(dev);
> -	if (ret) {
> -		pci_free_consistent(lp->pdev, TX_DESC_SIZE, lp->tx_ring,
> -							lp->tx_ring_dma);
> -		pci_free_consistent(lp->pdev, RX_DESC_SIZE, lp->rx_ring,
> -							lp->rx_ring_dma);
> -		return ret;
> -	}
> +	if (ret)
> +		goto err_free_tx_ring;
> 
>  	napi_enable(&lp->napi);
>  	netif_start_queue(dev);
> 
>  	return 0;
> +
> +err_free_tx_ring:
> +	pci_free_consistent(lp->pdev, TX_DESC_SIZE, lp->tx_ring,
> +			lp->tx_ring_dma);
> +err_free_rx_ring:
> +	pci_free_consistent(lp->pdev, RX_DESC_SIZE, lp->rx_ring,
> +			lp->rx_ring_dma);
> +err_free_irq:
> +	free_irq(dev->irq, dev);
> +out:
> +	return ret;
>  }
> 
>  static netdev_tx_t r6040_start_xmit(struct sk_buff *skb,
--
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