diff options
| author |   Alexey Khoroshilov <khoroshilov@ispras.ru> | 2013-04-07 23:46:47 +0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-08 11:30:04 -0700 |
| commit | 1b581f173992cded311f810346378f763a1f1e5d (patch) | |
| tree | 84ef80845e97f17fcc4daeb3338721807910c28c /drivers/tty/mxser.c | |
| parent | Revert "tty/8250_pnp: serial port detection regression since v3.7" (diff) | |
| download | linux-dev-1b581f173992cded311f810346378f763a1f1e5d.tar.xz linux-dev-1b581f173992cded311f810346378f763a1f1e5d.zip | |
tty: mxser: fix cycle termination condition in mxser_probe() and mxser_module_init()
There is a bug in resources deallocation code in mxser_probe() and
mxser_module_init(). As soon as variable 'i' is unsigned int, cycle
termination condition i >= 0 is always true. The patch fixes the issue.
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/mxser.c')
| -rw-r--r-- | drivers/tty/mxser.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 484b6a3c9b03..302909ccf183 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -2643,9 +2643,9 @@ static int mxser_probe(struct pci_dev *pdev, mxvar_sdriver, brd->idx + i, &pdev->dev); if (IS_ERR(tty_dev)) { retval = PTR_ERR(tty_dev); - for (i--; i >= 0; i--) + for (; i > 0; i--) tty_unregister_device(mxvar_sdriver, - brd->idx + i); + brd->idx + i - 1); goto err_relbrd; } } @@ -2751,9 +2751,9 @@ static int __init mxser_module_init(void) tty_dev = tty_port_register_device(&brd->ports[i].port, mxvar_sdriver, brd->idx + i, NULL); if (IS_ERR(tty_dev)) { - for (i--; i >= 0; i--) + for (; i > 0; i--) tty_unregister_device(mxvar_sdriver, - brd->idx + i); + brd->idx + i - 1); for (i = 0; i < brd->info->nports; i++) tty_port_destroy(&brd->ports[i].port); free_irq(brd->irq, brd); |