serial: bfin_5xx: fix off-by-one with resource size

This doesn't cause any real bugs, but it should still be fixed.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/serial/bfin_5xx.c b/drivers/tty/serial/bfin_5xx.c
index 9b1ff2b..957135a 100644 (file)
--- a/drivers/tty/serial/bfin_5xx.c
+++ b/drivers/tty/serial/bfin_5xx.c
@@ -1304,8 +1304,7 @@ static int bfin_serial_probe(struct platform_device *pdev)
                        goto out_error_free_peripherals;
                }
 
-               uart->port.membase = ioremap(res->start,
-                       res->end - res->start);
+               uart->port.membase = ioremap(res->start, resource_size(res));
                if (!uart->port.membase) {
                        dev_err(&pdev->dev, "Cannot map uart IO\n");
                        ret = -ENXIO;