[PATCH] gpio: davinci: Use signed type for 'irq' variable

[Alexander Shiyan <shc_work@xxxxxxx>]

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@xxxxxxx>
---
 drivers/gpio/gpio-davinci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 7629b4f..29321ee 100644
--- 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;
-- 
1.8.3.2

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