From: Hans Verkuil <hans.verkuil@xxxxxxxxx> When applications try to set READ_ONLY controls an error should be returned. However, when drivers do that it should be accepted. Those controls could reflect some driver status which the application can't change but the driver obviously has to be able to change it. This is needed among others for future HDMI status controls. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> --- drivers/media/video/v4l2-ctrls.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index d9e0439..0b1b30f 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -1826,9 +1826,6 @@ static int set_ctrl(struct v4l2_ctrl *ctrl, s32 *val) int ret; int i; - if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) - return -EACCES; - v4l2_ctrl_lock(ctrl); /* Reset the 'is_new' flags of the cluster */ @@ -1853,6 +1850,9 @@ int v4l2_s_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *control) if (ctrl == NULL || !type_is_int(ctrl)) return -EINVAL; + if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) + return -EACCES; + return set_ctrl(ctrl, &control->value); } EXPORT_SYMBOL(v4l2_s_ctrl); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
