1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/shader/arbprogram.c b/src/mesa/shader/arbprogram.c
index 746138071e..7e3040a6ef 100644
--- a/src/mesa/shader/arbprogram.c
+++ b/src/mesa/shader/arbprogram.c
@@ -489,8 +489,13 @@ _mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
       return;
    }
 
-   if (ctx->Program.ErrorPos == -1 && ctx->Driver.ProgramStringNotify)
-      ctx->Driver.ProgramStringNotify( ctx, target, base );
+   if (ctx->Program.ErrorPos == -1) {
+      /* finally, give the program to the driver for translation/checking */
+      if (!ctx->Driver.ProgramStringNotify(ctx, target, base)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glProgramStringARB(rejected by driver");
+      }
+   }
 }