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authorJiri Slaby <jslaby@suse.cz>2012-11-15 09:49:56 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-15 17:20:58 -0800
commit191c5f10275cfbb36802edadbdb10c73537327b4 (patch)
tree93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /drivers/tty/vt
parentd0f59141ca40159c9d142c0f62e9aea61f846539 (diff)
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 'drivers/tty/vt')
-rw-r--r--drivers/tty/vt/vt.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index f87d7e8964bf..607636b4734d 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -779,6 +779,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
con_set_default_unimap(vc);
vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
if (!vc->vc_screenbuf) {
+ tty_port_destroy(&vc->port);
kfree(vc);
vc_cons[currcons].d = NULL;
return -ENOMEM;
@@ -999,8 +1000,10 @@ void vc_deallocate(unsigned int currcons)
put_pid(vc->vt_pid);
module_put(vc->vc_sw->owner);
kfree(vc->vc_screenbuf);
- if (currcons >= MIN_NR_CONSOLES)
+ if (currcons >= MIN_NR_CONSOLES) {
+ tty_port_destroy(&vc->port);
kfree(vc);
+ }
vc_cons[currcons].d = NULL;
}
}