Commit b3c6661a authored by Anshuman Gupta's avatar Anshuman Gupta
Browse files

drm/i915/hdcp: Get conn while content_type changed 



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: a6597faa ("drm/i915: Protect workers against disappearing connectors")
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Reviewed-by: default avatarRamalingam C <ramalingam.c@intel.com>
Tested-by: default avatarKarthik B S <karthik.b.s@intel.com>
Signed-off-by: default avatarAnshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-3-anshuman.gupta@intel.com
parent d276e167

drivers/gpu/drm/i915/display/intel_hdcp.c

+1 −0
Original line number Diff line number Diff line
@@ -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);

	}