linux-kernel - Re: [patch] net: make ndev->irq signed for error handling

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Date:	Thu, 7 Nov 2013 22:03:19 +0530
From:	Mugunthan V N <mugunthanvnm@...com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
CC:	"David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: Re: [patch] net: make ndev->irq signed for error handling

On Thursday 07 November 2013 05:52 PM, Dan Carpenter wrote:
> On Thu, Nov 07, 2013 at 05:44:38PM +0530, Mugunthan V N wrote:
>> On Thursday 07 November 2013 01:18 PM, Dan Carpenter wrote:
>>> There is a bug in cpsw_probe() where we do:
>>>
>>> 	ndev->irq = platform_get_irq(pdev, 0);
>>> 	if (ndev->irq < 0) {
>>>
>>> The problem is that "ndev->irq" is unsigned so the error handling
>>> doesn't work.  I have changed it to a regular int.
>>>
>>> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
>> ndev->irq is never used any where in the driver, I think its better to
>> remove this part of code from probe. If every one is ok, I can send a
>> patch to remove the code.
> It seems like cpsw_ndo_poll_controller() uses it.
>
>

That can be changed to pass one of the interrupt numbers from priv as
the irq number is not used in interrupt service routine.

Regards
Mugunthan V N
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