From d313792645bd1a0d3b7d21f98ed33d0e7a9fb858 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 4 Sep 2013 17:22:08 +0530
Subject: [PATCH] Possible fix for 1220468

---
 src/calibre/devices/idevice/libimobiledevice.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/calibre/devices/idevice/libimobiledevice.py b/src/calibre/devices/idevice/libimobiledevice.py
index bf87d30449..4a2b26239b 100644
--- a/src/calibre/devices/idevice/libimobiledevice.py
+++ b/src/calibre/devices/idevice/libimobiledevice.py
@@ -304,10 +304,11 @@ class libiMobileDevice():
             self._log(" device already disconnected")
 
     def dismount_ios_media_folder(self):
-        self._afc_client_free()
-        #self._lockdown_goodbye()
-        self._idevice_free()
-        self.device_mounted = False
+        if self.device_mounted:
+            self._afc_client_free()
+            #self._lockdown_goodbye()
+            self._idevice_free()
+            self.device_mounted = False
 
     def exists(self, path):
         '''