The CamApp loopUsers_ member variable isn't initialized, which results
in random execution of the event loop. Fix it.
Fixes: caa6ffacb2 ("cam: Reorganize run() function and merge the two event loops")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Umang Jain <umang.jain@ideasonboard.com>