From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 20 Dec 2011 10:47:44 +0000 (+0100)
Subject: serial: use DIV_ROUND_CLOSEST instead of open coding it
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=97d24634daff8b83dae21cfde68553ff4997e558;p=deliverable%2Flinux.git

serial: use DIV_ROUND_CLOSEST instead of open coding it

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index d2990f738606..c7bf31a6a7e7 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -421,7 +421,7 @@ uart_get_divisor(struct uart_port *port, unsigned int baud)
 	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
 		quot = port->custom_divisor;
 	else
-		quot = (port->uartclk + (8 * baud)) / (16 * baud);
+		quot = DIV_ROUND_CLOSEST(port->uartclk, 16 * baud);
 
 	return quot;
 }