tty: serial: samsung_tty: Use abs() to simplify some code

[platform/kernel/linux-starfive.git] / drivers / tty / serial / samsung_tty.c

diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index 0b37019..b29e9df 100644 (file)
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -24,6 +24,7 @@
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/math.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
@@ -1485,9 +1486,7 @@ static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
                }
                quot--;
 
-               calc_deviation = req_baud - baud;
-               if (calc_deviation < 0)
-                       calc_deviation = -calc_deviation;
+               calc_deviation = abs(req_baud - baud);
 
                if (calc_deviation < deviation) {
                        /*