linux-kernel - Re: [PATCH] au1000_eth: remove useless check

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Message-ID: <4835495E.8020506@pobox.com>
Date:	Thu, 22 May 2008 06:22:22 -0400
From:	Jeff Garzik <jgarzik@...ox.com>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	Julia Lawall <julia@...u.dk>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] au1000_eth: remove useless check

Francois Romieu wrote:
> The lifespan of the device covers the request_irq .. free_irq interval.
> 
> The cast of a void * pointer is not needed either.
> 
> Signed-off-by: Francois Romieu <romieu@...zoreil.com>
> 
> diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
> index 3634b5f..7023d77 100644
> --- a/drivers/net/au1000_eth.c
> +++ b/drivers/net/au1000_eth.c
> @@ -1239,12 +1239,7 @@ static int au1000_rx(struct net_device *dev)
>   */
>  static irqreturn_t au1000_interrupt(int irq, void *dev_id)
>  {
> -	struct net_device *dev = (struct net_device *) dev_id;
> -
> -	if (dev == NULL) {
> -		printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
> -		return IRQ_RETVAL(1);
> -	}
> +	struct net_device *dev = dev_id;
>  

applied


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