[PATCH] tty: serial: constify dev_pm_ops structures

[Bhumika Goyal]

Declare dev_pm_ops structures as const as they are only stored in the pm
field of a device_driver structure. This field is of type const, so
dev_pm_ops structures having similar properties can be declared const
too.

Size details after cross compiling the .o file for blackfin architecture.

File size before:
  text     data     bss     dec     hex filename
   3572     320      16    3908     f44 tty/serial/bfin_sport_uart.o

File size after:
   text    data     bss     dec     hex filename
   3664     228      16    3908     f44 tty/serial/bfin_sport_uart.o

Signed-off-by: Bhumika Goyal <bhumi...@gmail.com>
---
 drivers/tty/serial/bfin_sport_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/bfin_sport_uart.c 
b/drivers/tty/serial/bfin_sport_uart.c
index 984e1c0..6b03fb1 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -740,7 +740,7 @@ static int sport_uart_resume(struct device *dev)
        return 0;
 }
 
-static struct dev_pm_ops bfin_sport_uart_dev_pm_ops = {
+static const struct dev_pm_ops bfin_sport_uart_dev_pm_ops = {
        .suspend        = sport_uart_suspend,
        .resume         = sport_uart_resume,
 };
-- 
1.9.1