s390/3215: simplify the return expression of tty3215_open()

Simplify the return expression.

Link: https://lkml.kernel.org/r/20200921131101.93037-1-miaoqinglang@huawei.com
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 92757f9..d8acabb 100644 (file)
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -978,7 +978,6 @@ static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty)
 static int tty3215_open(struct tty_struct *tty, struct file * filp)
 {
        struct raw3215_info *raw = tty->driver_data;
-       int retval;
 
        tty_port_tty_set(&raw->port, tty);
 
@@ -986,11 +985,7 @@ static int tty3215_open(struct tty_struct *tty, struct file * filp)
        /*
         * Start up 3215 device
         */
-       retval = raw3215_startup(raw);
-       if (retval)
-               return retval;
-
-       return 0;
+       return raw3215_startup(raw);
 }
 
 /*