More error checks

Change-Id: Id2b9ab7a76bbdf2ed745f5e36e552dc9b101982f
diff --git a/libs/rs/rsShaderCache.cpp b/libs/rs/rsShaderCache.cpp
index d254018..45384c9 100644
--- a/libs/rs/rsShaderCache.cpp
+++ b/libs/rs/rsShaderCache.cpp
@@ -150,7 +150,7 @@
                 }
             }
             glDeleteProgram(pgm);
-            rsc->setError(RS_ERROR_BAD_SHADER, "Error linking GL Programs");
+            rsc->setError(RS_ERROR_FATAL_PROGRAM_LINK, "Error linking GL Programs");
             return false;
         }