change the return value to be UNIMPLEMENTED when the function pointer is NULL

Signed-off-by: Carl Zhang <carl.zhang@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/va/va.c b/va/va.c
index e8501c0..1b42c0f 100644
--- a/va/va.c
+++ b/va/va.c
@@ -52,7 +52,7 @@
 #define DRIVER_EXTENSION	"_drv_video.so"
 
 #define ASSERT		assert
-#define CHECK_VTABLE(s, ctx, func) if (!va_checkVtable(dpy, ctx->vtable->va##func, #func)) s = VA_STATUS_ERROR_UNKNOWN;
+#define CHECK_VTABLE(s, ctx, func) if (!va_checkVtable(dpy, ctx->vtable->va##func, #func)) s = VA_STATUS_ERROR_UNIMPLEMENTED;
 #define CHECK_MAXIMUM(s, ctx, var) if (!va_checkMaximum(dpy, ctx->max_##var, #var)) s = VA_STATUS_ERROR_UNKNOWN;
 #define CHECK_STRING(s, ctx, var) if (!va_checkString(dpy, ctx->str_##var, #var)) s = VA_STATUS_ERROR_UNKNOWN;