netdev - Re: [PATCH UPDATE] Extract chip specific code out of lasi

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Date:	Tue, 26 Jun 2007 23:47:55 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:	netdev@...r.kernel.org, akpm@...ux-foundation.org,
	jgarzik@...ox.com
Subject: Re: [PATCH UPDATE]  Extract chip specific code out of lasi_82596.c

Thomas Bogendoerfer <tsbogend@...ha.franken.de> :
[...]
> +static inline void init_rx_bufs(struct net_device *dev)
> +{
> +	struct i596_private *lp = netdev_priv(dev);
> +	struct i596_dma *dma = lp->dma;
> +	int i;
> +	struct i596_rfd *rfd;
> +	struct i596_rbd *rbd;
> +
> +	/* First build the Receive Buffer Descriptor List */
> +
> +	for (i = 0, rbd = dma->rbds; i < rx_ring_size; i++, rbd++) {
> +		dma_addr_t dma_addr;
> +		struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ + 4);
> +
> +		if (skb == NULL)
> +			panic(KERN_ERR "%s: alloc_skb() failed", __FILE__);

The driver could use netdev_alloc_skb.

init_rx_bufs() should handle failure more gracefully and return a proper
status code.

[...]
> +static int init_i596_mem(struct net_device *dev)
> +{
[...]
> +	if (request_irq(dev->irq, &i596_interrupt, 0, "i82596", dev)) {
> +		printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
> +		goto failed_free_irq;
> +	}
[...]
> +failed_free_irq:
> +	free_irq(dev->irq, dev);

Oops.

-- 
Ueimor
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