Merge mysql.com:/home/svoj/devel/mysql/BUG22708/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/merge/mysql-5.1-engines

sql/table.cc

@@ -892,11 +892,8 @@ static int open_binary_frm(THD *thd, TABLE_SHARE *share, uchar *head,
                             ha_legacy_type(share->db_type())));
       }
 #ifdef WITH_PARTITION_STORAGE_ENGINE
-      else
-      {
-        LEX_STRING pname= { C_STRING_WITH_LEN( "partition" ) };
-        if (str_db_type_length == pname.length &&
-            !strncmp((char *) next_chunk + 2, pname.str, pname.length))
+      else if (str_db_type_length == 9 &&
+               !strncmp((char *) next_chunk + 2, "partition", 9))
       {
         /*
           Use partition handler
@@ -910,8 +907,16 @@ static int open_binary_frm(THD *thd, TABLE_SHARE *share, uchar *head,
                             str_db_type_length, next_chunk + 2,
                             ha_legacy_type(share->db_type())));
       }
-      }
 #endif
+      else if (!tmp_plugin)
+      {
+        /* purecov: begin inspected */
+        error= 8;
+        my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), name.str);
+        my_free(buff, MYF(0));
+        goto err;
+        /* purecov: end */
+      }
       next_chunk+= str_db_type_length + 2;
     }
     if (next_chunk + 5 < buff_end)
@@ -2194,6 +2199,8 @@ void open_table_error(TABLE_SHARE *share, int error, int db_errno, int errarg)
                     "of MySQL and cannot be read", 
                     MYF(0), buff);
     break;
+  case 8:
+    break;
   default:				/* Better wrong error than none */
   case 4:
     strxmov(buff, share->normalized_path.str, reg_ext, NullS);