From 1738eba7496ded0e0ae5cc112d4416fa509261ca Mon Sep 17 00:00:00 2001
From: Till Maas <opensource@till.name>
Date: Fri, 22 Feb 2013 14:42:41 +0100
Subject: [PATCH] mysql_user: handle unnecessary GRANT revocation

---
 mysql_user | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/mysql_user b/mysql_user
index 9317bbdd7a1..3f40411b0db 100644
--- a/mysql_user
+++ b/mysql_user
@@ -213,7 +213,13 @@ def privileges_revoke(cursor, user,host,db_table):
     query = "REVOKE ALL PRIVILEGES ON %s FROM '%s'@'%s'" % (db_table,user,host)
     cursor.execute(query)
     query = "REVOKE GRANT OPTION ON %s FROM '%s'@'%s'" % (db_table,user,host)
-    cursor.execute(query)
+    try:
+        cursor.execute(query)
+    except MySQLdb.OperationalError, e:
+        # 1141 -> There is no such grant defined for user ... on host ...
+        # If this exception is raised, there is no need to revoke the GRANT privilege
+        if e.args[0] != 1141 or not e.args[1].startswith("There is no such grant defined for user"):
+            raise e
 
 def privileges_grant(cursor, user,host,db_table,priv):