From e97aca3557601e6e343dcf391aa876321f48ac39 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Aug 2024 15:14:31 +0200 Subject: Merging upstream version 6.9.9. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/drm/amd/display/modules/hdcp') 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 f7b5583ee6..8e9caae7c9 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); -- cgit v1.2.3