prev_hdl 3144 drivers/media/v4l2-core/v4l2-ctrls.c struct v4l2_ctrl_handler *prev_hdl = NULL; prev_hdl 3151 drivers/media/v4l2-core/v4l2-ctrls.c prev_hdl = list_last_entry(&main_hdl->requests_queued, prev_hdl 3158 drivers/media/v4l2-core/v4l2-ctrls.c mutex_lock(prev_hdl->lock); prev_hdl 3159 drivers/media/v4l2-core/v4l2-ctrls.c ref_ctrl_prev = list_first_entry(&prev_hdl->ctrl_refs, prev_hdl 3167 drivers/media/v4l2-core/v4l2-ctrls.c &prev_hdl->ctrl_refs)) prev_hdl 3175 drivers/media/v4l2-core/v4l2-ctrls.c mutex_unlock(prev_hdl->lock);