diff options
| author | Ben Collins <bcollins@ubuntu.com> | 2006-01-31 01:31:13 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-01-31 01:31:13 -0500 |
| commit | 6dea93477c3377cf4199fd37cc3fb11071987ae4 (patch) | |
| tree | 33190c4ab5f6e9ec539c90c8cf4d0f3d96e62449 /drivers/usb/input/hiddev.c | |
| parent | 97d4ebfe7946bc9b89791c932a15c990a24aa94d (diff) | |
| download | op-kernel-dev-6dea93477c3377cf4199fd37cc3fb11071987ae4.zip op-kernel-dev-6dea93477c3377cf4199fd37cc3fb11071987ae4.tar.gz | |
Input: hiddev - fix off-by-one for num_values in uref_multi requests
Found this when working with a HAPP UGCI device. It has a usage with 7
indexes. I could read them all one at a time, but using a multiref it
would only allow me to read the first 6. The patch below fixed it.
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/usb/input/hiddev.c')
| -rw-r--r-- | drivers/usb/input/hiddev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/input/hiddev.c b/drivers/usb/input/hiddev.c index 4dff847..3f72749 100644 --- a/drivers/usb/input/hiddev.c +++ b/drivers/usb/input/hiddev.c @@ -632,7 +632,7 @@ static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) && (uref_multi->num_values > HID_MAX_MULTI_USAGES || - uref->usage_index + uref_multi->num_values >= field->report_count)) + uref->usage_index + uref_multi->num_values > field->report_count)) goto inval; } |
