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gpio: em: Fix checking return value of irq_alloc_descs

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irq_alloc_descs() returns negative error code on failure.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Axel Lin 2012-08-28 19:30:44 +08:00 committed by Linus Walleij
parent 4c30aa33d4
commit dd2914972e
1 changed files with 2 additions and 2 deletions
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4
drivers/gpio/gpio-em.c
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@ -247,9 +247,9 @@ static int __devinit em_gio_irq_domain_init(struct em_gio_priv *p)
p->irq_base = irq_alloc_descs(pdata->irq_base, 0,
pdata->number_of_pins, numa_node_id());
if (IS_ERR_VALUE(p->irq_base)) {
if (p->irq_base < 0) {
dev_err(&pdev->dev, "cannot get irq_desc\n");
return -ENXIO;
return p->irq_base;
}
pr_debug("gio: hw base = %d, nr = %d, sw base = %d\n",
pdata->gpio_base, pdata->number_of_pins, p->irq_base);