diff options
| author | Hans de Goede <j.w.r.degoede@hhs.nl> | 2008-09-03 17:12:14 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-09-03 18:37:28 -0300 |
| commit | 0f523c2ff6b5ab3b4412cf56dee77ac57be24103 (patch) | |
| tree | 81898036d7d8a845e190257b2e2f02d48e74315a | |
| parent | f50ba1bed3cfd65d6899afc4cb77299ee5c297ae (diff) | |
V4L/DVB (8815): gspca: Fix problems with disabled controls.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 33161e1e0bc..e7e73ec7134 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -869,7 +869,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, id &= V4L2_CTRL_ID_MASK; id++; for (i = 0; i < gspca_dev->sd_desc->nctrls; i++) { - if (id < gspca_dev->sd_desc->ctrls[i].qctrl.id) + if (gspca_dev->sd_desc->ctrls[i].qctrl.id < id) continue; if (ix < 0) { ix = i; @@ -908,6 +908,8 @@ static int vidioc_s_ctrl(struct file *file, void *priv, i++, ctrls++) { if (ctrl->id != ctrls->qctrl.id) continue; + if (gspca_dev->ctrl_dis & (1 << i)) + return -EINVAL; if (ctrl->value < ctrls->qctrl.minimum || ctrl->value > ctrls->qctrl.maximum) return -ERANGE; @@ -934,6 +936,8 @@ static int vidioc_g_ctrl(struct file *file, void *priv, i++, ctrls++) { if (ctrl->id != ctrls->qctrl.id) continue; + if (gspca_dev->ctrl_dis & (1 << i)) + return -EINVAL; if (mutex_lock_interruptible(&gspca_dev->usb_lock)) return -ERESTARTSYS; ret = ctrls->get(gspca_dev, &ctrl->value); |