linux-kernel - [PATCH 24/25] usb: cdc-acm: Change return type to void

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Date:   Tue,  4 Sep 2018 11:44:50 +0900
From:   Jaejoong Kim <climbbb.kim@...il.com>
To:     linux-um@...ts.infradead.org, netdev@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-s390@...r.kernel.org,
        devel@...verdev.osuosl.org, greybus-dev@...ts.linaro.org,
        linuxppc-dev@...ts.ozlabs.org, linux-serial@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>
Subject: [PATCH 24/25] usb: cdc-acm: Change return type to void

Since tty_standard_install() always returns 0, the return type has changed
to void. Now apply this and remove the obsolete error check.

Signed-off-by: Jaejoong Kim <climbbb.kim@...il.com>
---
 drivers/usb/class/cdc-acm.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 27346d6..de6a27e 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -572,23 +572,15 @@ static void acm_softint(struct work_struct *work)
 static int acm_tty_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct acm *acm;
-	int retval;
 
 	acm = acm_get_by_minor(tty->index);
 	if (!acm)
 		return -ENODEV;
 
-	retval = tty_standard_install(driver, tty);
-	if (retval)
-		goto error_init_termios;
-
+	tty_standard_install(driver, tty);
 	tty->driver_data = acm;
 
 	return 0;
-
-error_init_termios:
-	tty_port_put(&acm->port);
-	return retval;
 }
 
 static int acm_tty_open(struct tty_struct *tty, struct file *filp)
-- 
2.7.4