diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-08-07 21:47:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-14 01:50:21 +0200 |
| commit | d2281107457cacf44d60b8a97c5db1af27c3a716 (patch) | |
| tree | d5192c7d4957ff779381696f44cda62f2940b0df /drivers/s390 | |
| parent | TTY: con3215, unset raw3215[line] (diff) | |
| download | linux-d2281107457cacf44d60b8a97c5db1af27c3a716.tar.xz linux-d2281107457cacf44d60b8a97c5db1af27c3a716.zip | |
TTY: con3215, add tty install
This has two outcomes:
* we give the TTY layer a tty_port
* we do not find the info structure every time open is called on that
tty
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: linux-s390@vger.kernel.org
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/con3215.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 16554982671c..9ffb6d5f17aa 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -942,6 +942,19 @@ static int __init con3215_init(void) console_initcall(con3215_init); #endif +static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty) +{ + struct raw3215_info *raw; + + raw = raw3215[tty->index]; + if (raw == NULL) + return -ENODEV; + + tty->driver_data = raw; + + return tty_port_install(&raw->port, driver, tty); +} + /* * tty3215_open * @@ -949,14 +962,9 @@ console_initcall(con3215_init); */ static int tty3215_open(struct tty_struct *tty, struct file * filp) { - struct raw3215_info *raw; + struct raw3215_info *raw = tty->driver_data; int retval; - raw = raw3215[tty->index]; - if (raw == NULL) - return -ENODEV; - - tty->driver_data = raw; tty_port_tty_set(&raw->port, tty); tty->low_latency = 0; /* don't use bottom half for pushing chars */ @@ -1117,6 +1125,7 @@ static void tty3215_start(struct tty_struct *tty) } static const struct tty_operations tty3215_ops = { + .install = tty3215_install, .open = tty3215_open, .close = tty3215_close, .write = tty3215_write, |