cdff36a021
[Why] hdcp are enabled for asics from raven. for old asics which hdcp are not enabled, hdcp_workqueue are null. some access to hdcp work queue are not guarded with pointer check. [How] add hdcp_workqueue pointer check before access workqueue. Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>