diff options
| author | Ian Campbell <ijc@hellion.org.uk> | 2005-09-04 10:41:14 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-04 10:41:14 +0400 |
| commit | 4cee99564db7f65a6f88e4b752da52768cde3802 (patch) | |
| tree | 6c355494c3c399d2c1fc2d746171f434ded907e4 /drivers/input | |
| parent | d2b5ffca73594e4046f405e3ef2438ce41f76fb2 (diff) | |
| download | linux-4cee99564db7f65a6f88e4b752da52768cde3802.tar.xz | |
Input: fix checking whether new keycode fits size-wise
When dev->keycodesize == sizeof(int) the old code produces
incorrect result.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/evdev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 20e3a165989f..3a8314bb7902 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -320,7 +320,7 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (t < 0 || t >= dev->keycodemax || !dev->keycodesize) return -EINVAL; if (get_user(v, ip + 1)) return -EFAULT; if (v < 0 || v > KEY_MAX) return -EINVAL; - if (v >> (dev->keycodesize * 8)) return -EINVAL; + if (dev->keycodesize < sizeof(v) && (v >> (dev->keycodesize * 8))) return -EINVAL; u = SET_INPUT_KEYCODE(dev, t, v); clear_bit(u, dev->keybit); set_bit(v, dev->keybit); |