--- /dev/null
+From a80d2fe3bcc2c14c6e1434615d1be38924b668ea Mon Sep 17 00:00:00 2001
+From: Carl Zhang <carl.zhang@intel.com>
+Date: Mon, 30 Dec 2019 04:38:43 -0500
+Subject: [PATCH] adjust call sequence to ensure authenticate operation is
+ executed
+
+fixes #355
+
+Downloaded from upstream PR: https://github.com/intel/libva/pull/356
+
+Signed-off-by: Carl Zhang <carl.zhang@intel.com>
+Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
+---
+ va/va.c | 25 ++++++++++++++++---------
+ 1 file changed, 16 insertions(+), 9 deletions(-)
+
+diff --git a/va/va.c b/va/va.c
+index cfcabff..7f014a1 100644
+--- a/va/va.c
++++ b/va/va.c
+@@ -367,11 +367,23 @@ static VAStatus va_getDriverNameByIndex(VADisplay dpy, char **driver_name, int c
+ VADisplayContextP pDisplayContext = (VADisplayContextP)dpy;
+ const char *driver_name_env = NULL;
+ VADriverContextP ctx;
++ VAStatus status = VA_STATUS_SUCCESS;
+
+ ctx = CTX(dpy);
++ if (pDisplayContext->vaGetDriverNameByIndex) {
++ /*if vaGetDriverNameByIndex is implemented*/
++ status = pDisplayContext->vaGetDriverNameByIndex(pDisplayContext, driver_name, candidate_index);
++ } else {
++ if (candidate_index == 0)
++ status = pDisplayContext->vaGetDriverName(pDisplayContext, driver_name);
++ else
++ status = VA_STATUS_ERROR_INVALID_PARAMETER;
++ }
+ driver_name_env = getenv("LIBVA_DRIVER_NAME");
+ /*if user set driver name by vaSetDriverName */
+ if (ctx->override_driver_name){
++ if(*driver_name)
++ free(*driver_name);
+ *driver_name = strdup(ctx->override_driver_name);
+ if (!(*driver_name)) {
+ va_errorMessage(dpy, "va_getDriverNameByIndex failed with %s, out of memory\n",vaErrorStr(VA_STATUS_ERROR_ALLOCATION_FAILED));
+@@ -380,19 +392,14 @@ static VAStatus va_getDriverNameByIndex(VADisplay dpy, char **driver_name, int c
+ va_infoMessage(dpy, "User requested driver '%s'\n", *driver_name);
+ return VA_STATUS_SUCCESS;
+ } else if (driver_name_env && (geteuid() == getuid())) {
++ if(*driver_name)
++ free(*driver_name);
+ /*if user set driver name by environment variable*/
+ *driver_name = strdup(driver_name_env);
+ va_infoMessage(dpy, "User environment variable requested driver '%s'\n", *driver_name);
+ return VA_STATUS_SUCCESS;
+- } else if (pDisplayContext->vaGetDriverNameByIndex) {
+- /*if vaGetDriverNameByIndex is implemented*/
+- return pDisplayContext->vaGetDriverNameByIndex(pDisplayContext, driver_name, candidate_index);
+- } else {
+- if (candidate_index == 0)
+- return pDisplayContext->vaGetDriverName(pDisplayContext, driver_name);
+- else
+- return VA_STATUS_ERROR_INVALID_PARAMETER;
+- }
++ }
++ return status;
+ }
+
+ static char *va_getDriverPath(const char *driver_dir, const char *driver_name)