There can be situation when DP MST connector is created without
mst modeset being done, in those cases connector->encoder will be
NULL. MST connector->encoder initializes after modeset.
Don't enable HDCP in such cases to prevent any crash.
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Juston Li <juston.li@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-5-anshuman.gupta@intel.com
if (!hdcp->shim)
return -ENOENT;
+ if (!connector->encoder) {
+ drm_err(&dev_priv->drm, "[%s:%d] encoder is not initialized\n",
+ connector->base.name, connector->base.base.id);
+ return -ENODEV;
+ }
+
mutex_lock(&hdcp->mutex);
mutex_lock(&dig_port->hdcp_mutex);
drm_WARN_ON(&dev_priv->drm,