2 files changed, 3 insertions, 0 deletions
diff --git a/kern/error.c b/kern/error.c
index f448b4d9..a86e913c 100644
--- a/kern/error.c
+++ b/kern/error.c
@@ -32,6 +32,8 @@ error_str(int error)
         return "invalid argument";
     case ERROR_BUSY:
         return "device or resource busy";
+    case ERROR_FAULT:
+        return "Bad address";
     default:
         return "unknown error";
     }
diff --git a/kern/error.h b/kern/error.h
index cf88775d..eb11cda0 100644
--- a/kern/error.h
+++ b/kern/error.h
@@ -22,6 +22,7 @@
 #define ERROR_AGAIN 2
 #define ERROR_INVAL 3
 #define ERROR_BUSY  4
+#define ERROR_FAULT 5
 
 /*
  * Return a string describing the given error.