On Thu, Mar 30, 2017 at 02:05:25PM +0200, Hans Verkuil wrote: > Most ioctls do not have to write back the contents of the argument > if an error is returned. But VIDIOC_S_EDID is an exception together > with the EXT_CTRLS ioctls (already handled correctly). > > Add this exception to v4l2-compat-ioctl32. > > This fixes a compliance error when using compat32 and trying to > set a new EDID with more blocks than the hardware supports. In > that case the driver will return -E2BIG and set edid.blocks to the > actual maximum number of blocks. This field was never copied back > to userspace due to this bug. > > Signed-off-by: Hans Verkuil <hansverk@xxxxxxxxx> Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> -- Sakari Ailus e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
