drm/amd/display: Check HDCP returned status

From Alex Hung
1bd1fe1109fcd9213494283b01d9421f58e0b6c5 in linux-6.6.y/6.6.51
5d93060d430b359e16e7c555c8f151ead1ac614b in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/modules/hdcp/hdcp1_execution.c b/sys/dev/pci/drm/amd/display/modules/hdcp/hdcp1_execution.c
index 1ddb4f5..93c0455 100644 (file)
--- a/sys/dev/pci/drm/amd/display/modules/hdcp/hdcp1_execution.c
+++ b/sys/dev/pci/drm/amd/display/modules/hdcp/hdcp1_execution.c
@@ -433,17 +433,20 @@ static enum mod_hdcp_status authenticated_dp(struct mod_hdcp *hdcp,
        }
 
        if (status == MOD_HDCP_STATUS_SUCCESS)
-               mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
+               if (!mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
                                &input->bstatus_read, &status,
-                               hdcp, "bstatus_read");
+                               hdcp, "bstatus_read"))
+                       goto out;
        if (status == MOD_HDCP_STATUS_SUCCESS)
-               mod_hdcp_execute_and_set(check_link_integrity_dp,
+               if (!mod_hdcp_execute_and_set(check_link_integrity_dp,
                                &input->link_integrity_check, &status,
-                               hdcp, "link_integrity_check");
+                               hdcp, "link_integrity_check"))
+                       goto out;
        if (status == MOD_HDCP_STATUS_SUCCESS)
-               mod_hdcp_execute_and_set(check_no_reauthentication_request_dp,
+               if (!mod_hdcp_execute_and_set(check_no_reauthentication_request_dp,
                                &input->reauth_request_check, &status,
-                               hdcp, "reauth_request_check");
+                               hdcp, "reauth_request_check"))
+                       goto out;
 out:
        return status;
 }