[PATCH] handle errors returned by platform_get_irq*()

platform_get_irq*() now returns on -ENXIO when the resource cannot be
found.  Ensure all users of platform_get_irq*() handle this error
appropriately.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 7410e093a6b9..00d7c0ad8cbf 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -1066,6 +1066,8 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
         port->mapbase   = res->start;
         port->membase   = S3C24XX_VA_UART + (res->start - S3C24XX_PA_UART);
         port->irq       = platform_get_irq(platdev, 0);
+        if (port->irq < 0)
+                port->irq = 0;
 
         ourport->clk    = clk_get(&platdev->dev, "uart");