cam: stream_options: Use OptionValue::empty() to test if option is set

The roles() and updateConfiguration() functions check if the OptStream
OptionValue they receive is empty by first casting it to an array. To
prepare for the toArray() function not allowing such a cast when the
option value is empty, test if the option value is empty instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

0 files changed, 0 insertions, 0 deletions