1 files changed, 1 insertions, 1 deletions
diff --git a/sql-common/client.c b/sql-common/client.c
index 35127b4e546..d9b81324c4d 100644
--- a/sql-common/client.c
+++ b/sql-common/client.c
@@ -1576,7 +1576,7 @@ read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row, ulong *lengths)
     }
     else
     {
-      if (len > (ulong) (end_pos - pos))
+      if (pos + len > end_pos)
       {
         set_mysql_error(mysql, CR_UNKNOWN_ERROR, unknown_sqlstate);
         return -1;