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/tty/rocket.c b/drivers/tty/rocket.c
index 9700d34..d9056da 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -673,6 +673,7 @@
if (sInitChan(ctlp, &info->channel, aiop, chan) == 0) {
printk(KERN_ERR "RocketPort sInitChan(%d, %d, %d) failed!\n",
board, aiop, chan);
+ tty_port_destroy(&info->port);
kfree(info);
return;
}
@@ -2357,6 +2358,7 @@
for (i = 0; i < MAX_RP_PORTS; i++)
if (rp_table[i]) {
tty_unregister_device(rocket_driver, i);
+ tty_port_destroy(&rp_table[i]->port);
kfree(rp_table[i]);
}