gpio-charger: Fix checking return value of request_any_context_irq

request_any_context_irq() returns a negative value on failure.
On success, it returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 718f2c5..a64b885 100644 (file)
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -127,7 +127,7 @@ static int __devinit gpio_charger_probe(struct platform_device *pdev)
                ret = request_any_context_irq(irq, gpio_charger_irq,
                                IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
                                dev_name(&pdev->dev), charger);
-               if (ret)
+               if (ret < 0)
                        dev_warn(&pdev->dev, "Failed to request irq: %d\n", ret);
                else
                        gpio_charger->irq = irq;