minor fix for serial port detection

2016-04-04 15:35:31 +02:00
parent 691cdca257
commit 5481e609ef
2 changed files with 2 additions and 0 deletions
@@ -58,6 +58,7 @@ from lib_autotest import *
 def find_open_port():
   global serial_port, ser
   max_ports=100
+   serial_port=''
   while True:
     if os.path.exists(serial_port) == True:
       return serial_port
@@ -58,6 +58,7 @@ from lib_autotest import *
 def find_open_port():
   global serial_port, ser
   max_ports=100
+   serial_port=''
   while True:
     if os.path.exists(serial_port) == True:
       return serial_port