diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-11-15 09:49:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 02:20:58 +0100 |
| commit | 191c5f10275cfbb36802edadbdb10c73537327b4 (patch) | |
| tree | 93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /drivers/tty/nozomi.c | |
| parent | TTY: isicom, fix tty buffers memory leak (diff) | |
| download | linux-191c5f10275cfbb36802edadbdb10c73537327b4.tar.xz linux-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/tty/nozomi.c')
| -rw-r--r-- | drivers/tty/nozomi.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c index b917c9424954..cb764d297756 100644 --- a/drivers/tty/nozomi.c +++ b/drivers/tty/nozomi.c @@ -1479,6 +1479,7 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, if (IS_ERR(tty_dev)) { ret = PTR_ERR(tty_dev); dev_err(&pdev->dev, "Could not allocate tty?\n"); + tty_port_destroy(&port->port); goto err_free_tty; } } @@ -1486,8 +1487,10 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, return 0; err_free_tty: - for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i) - tty_unregister_device(ntty_driver, i); + for (i = 0; i < MAX_PORT; ++i) { + tty_unregister_device(ntty_driver, dc->index_start + i); + tty_port_destroy(&dc->port[i].port); + } err_free_kfifo: for (i = 0; i < MAX_PORT; i++) kfifo_free(&dc->port[i].fifo_ul); @@ -1520,8 +1523,10 @@ static void __devexit tty_exit(struct nozomi *dc) complete off a hangup method ? */ while (dc->open_ttys) msleep(1); - for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i) - tty_unregister_device(ntty_driver, i); + for (i = 0; i < MAX_PORT; ++i) { + tty_unregister_device(ntty_driver, dc->index_start + i); + tty_port_destroy(&dc->port[i].port); + } } /* Deallocate memory for one device */ |