copy-paste fixed

sql/ha_innodb.cc

@@ -1699,7 +1699,7 @@ innobase_rollback_to_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
         char name[64];
-        longlong2str((ulonglong)savepoint,buff,36);
+        longlong2str((ulonglong)savepoint,name,36);
 
         error = trx_rollback_to_savepoint_for_mysql(trx, name,
 						&mysql_binlog_cache_pos);
@@ -1727,7 +1727,7 @@ innobase_release_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
         char name[64];
-        longlong2str((ulonglong)savepoint,buff,36);
+        longlong2str((ulonglong)savepoint,name,36);
 
 	error = trx_release_savepoint_for_mysql(trx, name);
 
@@ -1768,7 +1768,7 @@ innobase_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
         char name[64];
-        longlong2str((ulonglong)savepoint,buff,36);
+        longlong2str((ulonglong)savepoint,name,36);
 
         error = trx_savepoint_for_mysql(trx, name, (ib_longlong)0);