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>
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 482ee02..43ea059 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -722,6 +722,7 @@
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 @@
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);
}