Re: [PATCH] PCI: keystone: fix error handling of irq_of_parse_and_map

From: Bjorn Helgaas
Date: Tue Dec 09 2014 - 17:38:17 EST


On Fri, Nov 14, 2014 at 02:19:03PM -0800, Dmitry Torokhov wrote:
> Return value of irq_of_parse_and_map() is unsigned int, with 0
> indicating failure, so testing for negative result never works.
>
> Signed-off-by: Dmitry Torokhov <dtor@xxxxxxxxxxxx>

Applied with Murali's ack to next-pci/host-keystone for v3.19. This
branch will be rebased to v3.19-rc1.

> ---
>
> Not tested, found by casual code inspection.
>
> drivers/pci/host/pci-keystone.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c
> index 8a27078..f2bd48d 100644
> --- a/drivers/pci/host/pci-keystone.c
> +++ b/drivers/pci/host/pci-keystone.c
> @@ -197,7 +197,7 @@ static int ks_pcie_get_irq_controller_info(struct keystone_pcie *ks_pcie,
> */
> for (temp = 0; temp < max_host_irqs; temp++) {
> host_irqs[temp] = irq_of_parse_and_map(*np_temp, temp);
> - if (host_irqs[temp] < 0)
> + if (!host_irqs[temp])
> break;
> }
> if (temp) {
> --
> 2.1.0.rc2.206.gedb03e5
>
>
> --
> Dmitry
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