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SubjectRe: [PATCH 3/6] drivers/net: remove null pointer dereference
Julia Lawall <julia@diku.dk> :
[...]
> diff -u -p a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
> --- a/drivers/net/au1000_eth.c 2008-04-27 11:41:11.000000000 +0200
> +++ b/drivers/net/au1000_eth.c 2008-05-12 09:32:54.000000000 +0200
> @@ -1242,7 +1242,7 @@ static irqreturn_t au1000_interrupt(int
> struct net_device *dev = (struct net_device *) dev_id;
>
> if (dev == NULL) {
> - printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
> + printk(KERN_ERR "isr: null dev ptr\n");
> return IRQ_RETVAL(1);
> }

The lifespan of 'dev' covers the request_irq..free_irq interval in this
driver. The whole 'dev == NULL' block can be removed.

--
Ueimor


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