From: Phong Tran <tranmanphong@gmail.com>
Date: Tue, 9 Jun 2015 13:28:18 +0000 (+0700)
Subject: greybus: uart: remove the redundant unregister chrdev
X-Git-Tag: v4.14-rc1~2366^2~378^2~21^2~1486
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=61b65a394cdbf5ed9117ad0da184a3f90a9b914a;p=platform%2Fkernel%2Flinux-rpi.git

greybus: uart: remove the redundant unregister chrdev

The unregister_chrdev_region() does twice here.
The chrdev region was unregistered
inside tty_unregister_driver().

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---

diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index 6db4993..7e94632a 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -732,12 +732,8 @@ fail_unregister_dev:
 
 static void gb_tty_exit(void)
 {
-	int major = MAJOR(gb_tty_driver->major);
-	int minor = gb_tty_driver->minor_start;
-
 	tty_unregister_driver(gb_tty_driver);
 	put_tty_driver(gb_tty_driver);
-	unregister_chrdev_region(MKDEV(major, minor), GB_NUM_MINORS);
 }
 
 static struct gb_protocol uart_protocol = {