--- a/master/module.c	Tue Jan 09 14:51:00 2007 +0000
+++ b/master/module.c	Wed Jan 10 10:45:57 2007 +0000
@@ -372,7 +372,11 @@
         return -1;
     }
 
-    ec_master_enter_idle_mode(device->master);
+    if (ec_master_enter_idle_mode(device->master)) {
+        EC_ERR("Failed to enter idle mode!\n");
+        return -1;
+    }
+
     return 0;
 }