Fix compile error in optimize build for CUDA-aware code.

This commit was SVN r28512.

opal/datatype/opal_datatype_module.c

@@ -173,7 +173,6 @@ int opal_datatype_register_params(void)
     if (0 > ret) {
 	return ret;
     }
-#endif /* OPAL_ENABLE_DEBUG */
 
 #if OPAL_CUDA_SUPPORT
     /* Set different levels of verbosity in the cuda related code. */
@@ -182,8 +181,13 @@ int opal_datatype_register_params(void)
                                  MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE,
                                  OPAL_INFO_LVL_8, MCA_BASE_VAR_SCOPE_LOCAL,
                                  &opal_cuda_verbose);
+    if (0 > ret) {
+	return ret;
+    }
 #endif
 
+#endif /* OPAL_ENABLE_DEBUG */
+
     return OPAL_SUCCESS;
 }