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authorJiri Slaby <jslaby@suse.cz>2012-11-15 08:49:56 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-16 01:20:58 (GMT)
commit191c5f10275cfbb36802edadbdb10c73537327b4 (patch)
tree93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /arch/m68k/emu
parentd0f59141ca40159c9d142c0f62e9aea61f846539 (diff)
downloadlinux-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 'arch/m68k/emu')
-rw-r--r--arch/m68k/emu/nfcon.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c
index 16d170f..6685bf4 100644
--- a/arch/m68k/emu/nfcon.c
+++ b/arch/m68k/emu/nfcon.c
@@ -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);