linux-kernel - Re: [PATCH] pata_of_platform: fix no irq handling

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Date:	Mon, 13 Oct 2008 15:56:56 +0900
From:	Tejun Heo <tj@...nel.org>
To:	avorontsov@...mvista.com
CC:	Jeff Garzik <jgarzik@...ox.com>, Li Yang <leoli@...escale.com>,
	Wang Jian <lark@...ux.net.cn>,
	"Steven A. Falco" <sfalco@...ris.com>, linuxppc-dev@...abs.org,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pata_of_platform: fix no irq handling

Anton Vorontsov wrote:
> When no irq specified the pata_of_platform fills the irq_res with -1,
> which is wrong to do for two reasons:
> 
> 1. By definition, 'no irq' should be IRQ 0, not some negative integer;
> 2. pata_platform checks for irq_res.start > 0, but since irq_res.start
>    is unsigned type, the check will be true for `-1'.
> 
> Reported-by: Steven A. Falco <sfalco@...ris.com>
> Signed-off-by: Anton Vorontsov <avorontsov@...mvista.com>

applied to #tj-upstream (will soon be sent upstream)

-- 
tejun
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