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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 <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Jiri Slaby 2012-11-15 09:49:56 +01:00 • committed by Greg Kroah-Hartman
commit 191c5f1027
41 changed files with 139 additions and 40 deletions
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6
arch/m68k/emu/nfcon.c
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@ -120,8 +120,6 @@ static int __init nfcon_init(void)
{
int res;
tty_port_init(&nfcon_tty_port);
stderr_id = nf_get_id("NF_STDERR");
if (!stderr_id)
return -ENODEV;
@ -130,6 +128,8 @@ static int __init nfcon_init(void)
if (!nfcon_tty_driver)
return -ENOMEM;
tty_port_init(&nfcon_tty_port);
nfcon_tty_driver->driver_name = "nfcon";
nfcon_tty_driver->name = "nfcon";
nfcon_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
@ -143,6 +143,7 @@ static int __init nfcon_init(void)
if (res) {
pr_err("failed to register nfcon tty driver\n");
put_tty_driver(nfcon_tty_driver);
tty_port_destroy(&nfcon_tty_port);
return res;
}
@ -157,6 +158,7 @@ static void __exit nfcon_exit(void)
unregister_console(&nf_console);
tty_unregister_driver(nfcon_tty_driver);
put_tty_driver(nfcon_tty_driver);
tty_port_destroy(&nfcon_tty_port);
}
module_init(nfcon_init);