[Intel-gfx] [PATCH v7 02/18] drm/i915/hdcp: Get conn while content_type changed

[Anshuman Gupta]

Get DRM connector reference count while scheduling a prop work
to avoid any possible destroy of DRM connector when it is in
DRM_CONNECTOR_REGISTERED state.

Fixes: a6597faa2d59 ("drm/i915: Protect workers against disappearing connectors")
Cc: Sean Paul <seanpaul at chromium.org>
Cc: Ramalingam C <ramalingam.c at intel.com>
Reviewed-by: Uma Shankar <uma.shankar at intel.com>
Reviewed-by: Ramalingam C <ramalingam.c at intel.com>
Tested-by: Karthik B S <karthik.b.s at intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index eee8263405b9..b9d8825e2bb1 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -2210,6 +2210,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
 	if (content_protection_type_changed) {
 		mutex_lock(&hdcp->mutex);
 		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+		drm_connector_get(&connector->base);
 		schedule_work(&hdcp->prop_work);
 		mutex_unlock(&hdcp->mutex);
 	}
-- 
2.26.2