netdev - Re: [PATCH] net: eepro testing positive EBUSY return by request

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Message-Id: <20110103.113726.246525147.davem@davemloft.net>
Date:	Mon, 03 Jan 2011 11:37:26 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	roel.kluin@...il.com
Cc:	ben@...adent.org.uk, netdev@...r.kernel.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: eepro testing positive EBUSY return by
 request_irq()?

From: roel kluin <roel.kluin@...il.com>
Date: Sun, 02 Jan 2011 15:52:23 +0100

> +		for (i = 0; i < ARRAY_SIZE(irqlist); i++) {
> +			retval = request_irq (irqlist[i], NULL, 0, "bogus", NULL);
> +			if (retval != -EBUSY)
> +				continue;
> +			if (retval < 0)
> +				goto out;
> +			dev->irq = irqlist[i];
> +			break;

This series of tests don't make much sense.

If we get to the "retval < 0" check, retval must be -EBUSY.  So at
best it's superfluous, at worst it's confusing.
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