[PATCH v2] gpio: ftgpio010: Fix platform_get_irq's error checking

[Arvind Yadav]

The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
changes in v2:
             It's should be 'irq <= 0' instead of 'irq < 0'.

 drivers/gpio/gpio-ftgpio010.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c
index 139f73d..fbb12f6 100644
--- a/drivers/gpio/gpio-ftgpio010.c
+++ b/drivers/gpio/gpio-ftgpio010.c
@@ -176,8 +176,8 @@ static int ftgpio_gpio_probe(struct platform_device *pdev)
                return PTR_ERR(g->base);
 
        irq = platform_get_irq(pdev, 0);
-       if (!irq)
-               return -EINVAL;
+       if (irq <= 0)
+               return irq ? irq : -EINVAL;
 
        ret = bgpio_init(&g->gc, dev, 4,
                         g->base + GPIO_DATA_IN,
-- 
2.7.4