drivers/serial/sunsu.c: Correct use after free

[safe/jmp/linux-2.6] / drivers / serial / atmel_serial.c

diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 3551c5c..9d948bc 100644 (file)
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -1531,7 +1531,7 @@ static int __devinit atmel_serial_probe(struct platform_device *pdev)
        void *data;
        int ret;
 
-       BUILD_BUG_ON(!is_power_of_2(ATMEL_SERIAL_RINGSIZE));
+       BUILD_BUG_ON(ATMEL_SERIAL_RINGSIZE & (ATMEL_SERIAL_RINGSIZE - 1));
 
        port = &atmel_ports[pdev->id];
        port->backup_imr = 0;