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TTY: call tty_port_destroy in the rest of drivers

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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>
This commit is contained in:
Jiri Slaby
2012-11-15 09:49:56 +01:00
committed by Greg Kroah-Hartman
parent d0f59141ca
commit 191c5f1027
41 changed files with 139 additions and 40 deletions
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4
drivers/s390/char/sclp_tty.c
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@@ -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;