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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-12 10:26:30 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-12 10:27:32 +0200
commitfcf7581f7ca82e63e4e137be77c342a4e4ec8401 (patch)
tree1e6f4fc39518618feb849a500c424642982456cb /drivers
parenta7c65a559ac371a08e67600ae585052441d71392 (diff)
[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<devno>. There cannot be two links. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/char/tty3270.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index a7fe6302c98..aa7a114f652 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);