irqchip: keystone: Remove warning unsigned 'kirq->irq' is never less than zero

Remove static checker warning:

	drivers/irqchip/irq-keystone.c:166 keystone_irq_probe()
	warn: unsigned 'kirq->irq' is never less than zero.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lkml.kernel.org/r/1409246189-29727-1-git-send-email-grygorii.strashko@ti.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/irqchip/irq-keystone.c b/drivers/irqchip/irq-keystone.c
index fea26bcfd4ea..608abf9c9283 100644
--- a/drivers/irqchip/irq-keystone.c
+++ b/drivers/irqchip/irq-keystone.c
@@ -36,7 +36,7 @@ struct keystone_irq_device {
         struct device           *dev;
         struct irq_chip          chip;
         u32                      mask;
-        u32                      irq;
+        int                      irq;
         struct irq_domain       *irqd;
         struct regmap           *devctrl_regs;
         u32                     devctrl_offset;