Commit 72bb5030 authored by hersen wu's avatar hersen wu Committed by Alex Deucher

drm/amd/display: Reboot while unplug hdcp enabled dp from mst hub

[Why]
event_property_update does not check NULL pointer

[How]
check aconnector->base.state equals NULL
Reviewed-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: default avatarAlex Hung <alex.hung@amd.com>
Signed-off-by: default avatarhersen wu <hersenxs.wu@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f46e3f28
......@@ -302,7 +302,7 @@ static void event_property_update(struct work_struct *work)
mutex_lock(&hdcp_work->mutex);
if (aconnector->base.state->commit) {
if (aconnector->base.state && aconnector->base.state->commit) {
ret = wait_for_completion_interruptible_timeout(&aconnector->base.state->commit->hw_done, 10 * HZ);
if (ret == 0) {
......@@ -311,17 +311,25 @@ static void event_property_update(struct work_struct *work)
}
}
if (aconnector->base.state) {
if (hdcp_work->encryption_status != MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE0 &&
hdcp_work->encryption_status <= MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON)
drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
else if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE1 &&
hdcp_work->encryption_status == MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON)
drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
if (aconnector->base.state->hdcp_content_type ==
DRM_MODE_HDCP_CONTENT_TYPE0 &&
hdcp_work->encryption_status <=
MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON)
drm_hdcp_update_content_protection(&aconnector->base,
DRM_MODE_CONTENT_PROTECTION_ENABLED);
else if (aconnector->base.state->hdcp_content_type ==
DRM_MODE_HDCP_CONTENT_TYPE1 &&
hdcp_work->encryption_status ==
MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON)
drm_hdcp_update_content_protection(&aconnector->base,
DRM_MODE_CONTENT_PROTECTION_ENABLED);
} else {
drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_DESIRED);
drm_hdcp_update_content_protection(&aconnector->base,
DRM_MODE_CONTENT_PROTECTION_DESIRED);
}
}
mutex_unlock(&hdcp_work->mutex);
drm_modeset_unlock(&dev->mode_config.connection_mutex);
......@@ -495,7 +503,9 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
(!!aconnector->base.state) ? aconnector->base.state->content_protection : -1,
(!!aconnector->base.state) ? aconnector->base.state->hdcp_content_type : -1);
hdcp_update_display(hdcp_work, link_index, aconnector, conn_state->hdcp_content_type, false);
if (conn_state)
hdcp_update_display(hdcp_work, link_index, aconnector,
conn_state->hdcp_content_type, false);
}
......
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