mesa: Assert _mesa_DeleteFragmentShaderATI doesn't ever free static DummyShader.

diff --git a/src/mesa/main/atifragshader.c b/src/mesa/main/atifragshader.c
index ae2feb3..9db5b88 100644 (file)
--- a/src/mesa/main/atifragshader.c
+++ b/src/mesa/main/atifragshader.c
@@ -316,6 +316,7 @@ _mesa_DeleteFragmentShaderATI(GLuint id)
       if (prog) {
         prog->RefCount--;
         if (prog->RefCount <= 0) {
+           assert(prog != &DummyShader);
            free(prog);
         }
       }