tty: serial: bfin_sport_uart: fix signedness error

sport->port.irq is unsigned, check for <0 doesn't make sense.
Explicitly cast it to int to check for error.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index e95c524d9d18..c3ec0a61d859 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -788,7 +788,7 @@ static int __devinit sport_uart_probe(struct platform_device *pdev)
                 sport->port.mapbase = res->start;
 
                 sport->port.irq = platform_get_irq(pdev, 0);
-                if (sport->port.irq < 0) {
+                if ((int)sport->port.irq < 0) {
                         dev_err(&pdev->dev, "No sport RX/TX IRQ specified\n");
                         ret = -ENOENT;
                         goto out_error_unmap;