gpio: exar: add a check for the return value of ida_simple_get fails

[linux-2.6-microblaze.git] / drivers / gpio / gpio-exar.c

diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
index 0ecd236..a09d2f9 100644 (file)
--- a/drivers/gpio/gpio-exar.c
+++ b/drivers/gpio/gpio-exar.c
@@ -148,6 +148,8 @@ static int gpio_exar_probe(struct platform_device *pdev)
        mutex_init(&exar_gpio->lock);
 
        index = ida_simple_get(&ida_index, 0, 0, GFP_KERNEL);
+       if (index < 0)
+               goto err_destroy;
 
        sprintf(exar_gpio->name, "exar_gpio%d", index);
        exar_gpio->gpio_chip.label = exar_gpio->name;