From 593214b3091aaa5a6c5116ee5cf5b489e029b50d Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 23 Dec 2009 09:42:37 -0700
Subject: [PATCH] ...

---
 src/calibre/devices/usbms/device.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/calibre/devices/usbms/device.py b/src/calibre/devices/usbms/device.py
index ba1d025502..fcefdb7582 100644
--- a/src/calibre/devices/usbms/device.py
+++ b/src/calibre/devices/usbms/device.py
@@ -329,7 +329,8 @@ class Device(DeviceConfig, DevicePlugin):
                 return subprocess.Popen(cmd,
                                     stdout=subprocess.PIPE).communicate()[0]
             except IOError: # Probably an interrupted system call
-                pass
+                if i == 2:
+                    raise
             time.sleep(2)