gpio: davinci: Use signed type for 'irq' variable

Variable 'irq' is declared as unsigned and then used to store
negative return values from irq_alloc_descs() such as -EINVAL.
This patch fix this by declaring the variable as a signed.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 7629b4f12b7fd8fbeba71bc72e8768f6a41936f6..29321eea3c443e05159720b32f79db55bfd3de51 100644 (file)
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -423,7 +423,8 @@ static const struct irq_domain_ops davinci_gpio_irq_ops = {
 
 static int davinci_gpio_irq_setup(struct platform_device *pdev)
 {
-       unsigned        gpio, irq, bank;
+       unsigned        gpio, bank;
+       int             irq;
        struct clk      *clk;
        u32             binten = 0;
        unsigned        ngpio, bank_irq;