From: Martin Schwidefsky Date: Fri, 12 Jun 2009 08:26:30 +0000 (+0200) Subject: [S390] 3270: do not register with tty_register_device X-Git-Tag: v2.6.31-rc1~354^2~19 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=fcf7581f7ca82e63e4e137be77c342a4e4ec8401;p=linux-2.6-block.git [S390] 3270: do not register with tty_register_device The tty3270_notifier that calls tty_register_device / tty_unregister_device is harmful in two ways: 1) the device node that is create is wrong because the minor numbers for 3270 tty start with 1 and tty_notifier passes the minor as index. 2) If 1) is corrected you'll get a warning: WARNING: at fs/sysfs/dir.c:462 sysfs_add_one+0x4c/0x60() sysfs: duplicate filename '227:1' can not be created The 227:1 link is already created by raw3270_create_attributes to refer to ../../class/tty/tty. There cannot be two links. Signed-off-by: Martin Schwidefsky --- diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index a7fe6302c982..aa7a114f6529 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -1754,14 +1754,6 @@ static const struct tty_operations tty3270_ops = { .set_termios = tty3270_set_termios }; -static void tty3270_notifier(int index, int active) -{ - if (active) - tty_register_device(tty3270_driver, index, NULL); - else - tty_unregister_device(tty3270_driver, index); -} - /* * 3270 tty registration code called from tty_init(). * Most kernel services (incl. kmalloc) are available at this poimt. @@ -1796,12 +1788,6 @@ static int __init tty3270_init(void) return ret; } tty3270_driver = driver; - ret = raw3270_register_notifier(tty3270_notifier); - if (ret) { - put_tty_driver(driver); - return ret; - - } return 0; } @@ -1810,7 +1796,6 @@ tty3270_exit(void) { struct tty_driver *driver; - raw3270_unregister_notifier(tty3270_notifier); driver = tty3270_driver; tty3270_driver = NULL; tty_unregister_driver(driver);