[Intel-gfx] [PATCH] drm/i915/hdcp: Check if media_gt exists

[Suraj Kandpal]

Check if media_gt exists if we are using gsc cs

--v2
-correct typo [Ankit]
-assign gsc variable if gt exists [Ankit]

Cc: Ankit Nautiyal <ankit.k.nauti...@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kand...@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.so...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c 
b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 650232c4892b..a7faafd1dcc5 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -205,7 +205,7 @@ bool intel_hdcp2_capable(struct intel_connector *connector)
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
        struct intel_hdcp *hdcp = &connector->hdcp;
        struct intel_gt *gt = dev_priv->media_gt;
-       struct intel_gsc_uc *gsc = &gt->uc.gsc;
+       struct intel_gsc_uc *gsc;
        bool capable = false;
 
        /* I915 support for HDCP2.2 */
@@ -213,9 +213,11 @@ bool intel_hdcp2_capable(struct intel_connector *connector)
                return false;
 
        /* If MTL+ make sure gsc is loaded and proxy is setup */
-       if (intel_hdcp_gsc_cs_required(dev_priv))
-               if (!intel_uc_fw_is_running(&gsc->fw))
+       if (intel_hdcp_gsc_cs_required(dev_priv)) {
+               gsc = gt ? &gt->uc.gsc : NULL;
+               if (!gsc || !intel_uc_fw_is_running(&gsc->fw))
                        return false;
+       }
 
        /* MEI/GSC interface is solid depending on which is used */
        mutex_lock(&dev_priv->display.hdcp.comp_mutex);
-- 
2.25.1