From: Srinivas Kamati <srinivasx.k@xxxxxxxxx>
"Content protection type change" igt test results in kernel
taint. Everytime after prop_work is done we are also
giving up connector reference, which is resulting in ref
count underrun.
Before scheduling prop_work acquire connector reference.
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Cc: Ramalingam C <ramalingam.c@xxxxxxxxx>
Signed-off-by: Srinivas Kamati <srinivasx.k@xxxxxxxxx>
---
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 b2a4bbcfdcd2..beedd672b21e 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);
}
--
2.25.1
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