diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-11-15 12:49:56 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 05:20:58 +0400 |
| commit | 191c5f10275cfbb36802edadbdb10c73537327b4 (patch) | |
| tree | 93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /drivers/s390 | |
| parent | d0f59141ca40159c9d142c0f62e9aea61f846539 (diff) | |
| download | linux-191c5f10275cfbb36802edadbdb10c73537327b4.tar.xz | |
TTY: call tty_port_destroy in the rest of drivers
After commit "TTY: move tty buffers to tty_port", the tty buffers are
not freed in some drivers. This is because tty_port_destructor is not
called whenever a tty_port is freed. This was an assumption I counted
with but was unfortunately untrue. So fix the drivers to fulfil this
assumption.
To be sure, the TTY buffers (and later some stuff) are gone along with
the tty_port, we have to call tty_port_destroy at tear-down places.
This is mostly where the structure containing a tty_port is freed.
This patch does exactly that -- put tty_port_destroy at those places.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/con3215.c | 1 | ||||
| -rw-r--r-- | drivers/s390/char/sclp_tty.c | 4 | ||||
| -rw-r--r-- | drivers/s390/char/sclp_vt220.c | 2 | ||||
| -rw-r--r-- | drivers/s390/char/tty3270.c | 2 |
4 files changed, 8 insertions, 1 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 9ffb6d5f17aa..8fb014f32e4c 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -677,6 +677,7 @@ static void raw3215_free_info(struct raw3215_info *raw) { kfree(raw->inbuf); kfree(raw->buffer); + tty_port_destroy(&raw->port); kfree(raw); } diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c index 30ec09e3d037..877fbc37c1e7 100644 --- a/drivers/s390/char/sclp_tty.c +++ b/drivers/s390/char/sclp_tty.c @@ -547,7 +547,6 @@ sclp_tty_init(void) sclp_tty_tolower = 1; } sclp_tty_chars_count = 0; - tty_port_init(&sclp_port); rc = sclp_register(&sclp_input_event); if (rc) { @@ -555,6 +554,8 @@ sclp_tty_init(void) return rc; } + tty_port_init(&sclp_port); + driver->driver_name = "sclp_line"; driver->name = "sclp_line"; driver->major = TTY_MAJOR; @@ -571,6 +572,7 @@ sclp_tty_init(void) rc = tty_register_driver(driver); if (rc) { put_tty_driver(driver); + tty_port_destroy(&sclp_port); return rc; } sclp_tty_driver = driver; diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 7e60f3d2f3f9..effcc8756e0a 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -615,6 +615,7 @@ static void __init __sclp_vt220_cleanup(void) return; sclp_unregister(&sclp_vt220_register); __sclp_vt220_free_pages(); + tty_port_destroy(&sclp_vt220_port); } /* Allocate buffer pages and register with sclp core. Controlled by init @@ -650,6 +651,7 @@ out: if (rc) { __sclp_vt220_free_pages(); sclp_vt220_init_count--; + tty_port_destroy(&sclp_vt220_port); } return rc; } diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 482ee028f842..43ea0593bdb0 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -722,6 +722,7 @@ out_pages: while (pages--) free_pages((unsigned long) tp->freemem_pages[pages], 0); kfree(tp->freemem_pages); + tty_port_destroy(&tp->port); out_tp: kfree(tp); out_err: @@ -744,6 +745,7 @@ tty3270_free_view(struct tty3270 *tp) for (pages = 0; pages < TTY3270_STRING_PAGES; pages++) free_pages((unsigned long) tp->freemem_pages[pages], 0); kfree(tp->freemem_pages); + tty_port_destroy(&tp->port); kfree(tp); } |