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irqchip: brcmstb-l2: Fix error handling of irq_of_parse_and_map 

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@chromium.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Kevin Cernekee <cernekee@gmail.com> 
Link: https://lkml.kernel.org/r/20141114221642.GA37468@dtor-ws
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Dmitry Torokhov 2014-11-14 14:16:42 -08:00 committed by Jason Cooper
parent 714710e1a2
commit d99ba4465a
1 changed files with 2 additions and 2 deletions
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4
drivers/irqchip/irq-brcmstb-l2.c
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@ -135,9 +135,9 @@ int __init brcmstb_l2_intc_of_init(struct device_node *np,
__raw_writel(0xffffffff, data->base + CPU_CLEAR);
data->parent_irq = irq_of_parse_and_map(np, 0);
if (data->parent_irq < 0) {
if (!data->parent_irq) {
pr_err("failed to find parent interrupt\n");
ret = data->parent_irq;
ret = -EINVAL;
goto out_unmap;
}