diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/hdcp')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c index 733f22bed021..c996365e84b0 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c @@ -151,7 +151,7 @@ out: static enum mod_hdcp_status poll_l_prime_available(struct mod_hdcp *hdcp) { - enum mod_hdcp_status status; + enum mod_hdcp_status status = MOD_HDCP_STATUS_FAILURE; uint8_t size; uint16_t max_wait = 20; // units of ms uint16_t num_polls = 5; diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c index f7b5583ee609..8e9caae7c955 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c @@ -156,6 +156,10 @@ static enum mod_hdcp_status read(struct mod_hdcp *hdcp, uint32_t cur_size = 0; uint32_t data_offset = 0; + if (msg_id == MOD_HDCP_MESSAGE_ID_INVALID) { + return MOD_HDCP_STATUS_DDC_FAILURE; + } + if (is_dp_hdcp(hdcp)) { while (buf_len > 0) { cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE); @@ -215,6 +219,10 @@ static enum mod_hdcp_status write(struct mod_hdcp *hdcp, uint32_t cur_size = 0; uint32_t data_offset = 0; + if (msg_id == MOD_HDCP_MESSAGE_ID_INVALID) { + return MOD_HDCP_STATUS_DDC_FAILURE; + } + if (is_dp_hdcp(hdcp)) { while (buf_len > 0) { cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE); |