diff options
| author |   Jiri Slaby <jslaby@suse.cz> | 2012-11-15 09:49:56 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-15 17:20:58 -0800 |
| commit | 191c5f10275cfbb36802edadbdb10c73537327b4 (patch) | |
| tree | 93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /drivers/misc | |
| parent | TTY: isicom, fix tty buffers memory leak (diff) | |
| download | linux-dev-191c5f10275cfbb36802edadbdb10c73537327b4.tar.xz linux-dev-191c5f10275cfbb36802edadbdb10c73537327b4.zip | |
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/misc')
| -rw-r--r-- | drivers/misc/pti.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c index 4999b34b7a60..a1f0d174e687 100644 --- a/drivers/misc/pti.c +++ b/drivers/misc/pti.c @@ -882,11 +882,14 @@ err: static void __devexit pti_pci_remove(struct pci_dev *pdev) { struct pti_dev *drv_data = pci_get_drvdata(pdev); + unsigned int a; unregister_console(&pti_console); - tty_unregister_device(pti_tty_driver, 0); - tty_unregister_device(pti_tty_driver, 1); + for (a = 0; a < PTITTY_MINOR_NUM; a++) { + tty_unregister_device(pti_tty_driver, a); + tty_port_destroy(&drv_data->port[a]); + } iounmap(drv_data->pti_ioaddr); pci_set_drvdata(pdev, NULL); |