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Date: Mon, 6 Oct 2008 21:26:54 +0400 From: Anton Vorontsov <avorontsov@...mvista.com> To: Jeff Garzik <jgarzik@...ox.com> Cc: 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: [PATCH] pata_of_platform: fix no irq handling 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> --- Resending again... drivers/ata/pata_of_platform.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/ata/pata_of_platform.c b/drivers/ata/pata_of_platform.c index 408da30..1f18ad9 100644 --- a/drivers/ata/pata_of_platform.c +++ b/drivers/ata/pata_of_platform.c @@ -52,7 +52,7 @@ static int __devinit pata_of_platform_probe(struct of_device *ofdev, ret = of_irq_to_resource(dn, 0, &irq_res); if (ret == NO_IRQ) - irq_res.start = irq_res.end = -1; + irq_res.start = irq_res.end = 0; else irq_res.flags = 0; -- 1.5.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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