diff options
Diffstat (limited to 'drivers/media/usb/uvc/uvc_ctrl.c')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_ctrl.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index f7061a5ef1d..2bb7613ddeb 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -927,7 +927,7 @@ static int __uvc_ctrl_get(struct uvc_video_chain *chain, int ret; if ((ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR) == 0) - return -EINVAL; + return -EACCES; if (!ctrl->loaded) { ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, ctrl->entity->id, @@ -1452,8 +1452,12 @@ int uvc_ctrl_set(struct uvc_video_chain *chain, if (step == 0) step = 1; - xctrl->value = min + (xctrl->value - min + step/2) / step * step; - xctrl->value = clamp(xctrl->value, min, max); + xctrl->value = min + ((u32)(xctrl->value - min) + step / 2) + / step * step; + if (mapping->data_type == UVC_CTRL_DATA_TYPE_SIGNED) + xctrl->value = clamp(xctrl->value, min, max); + else + xctrl->value = clamp_t(u32, xctrl->value, min, max); value = xctrl->value; break; |