check if subservices are still available in subservicesquickzapping mode

to avoid bluescreen

diff --git a/lib/python/Screens/SubservicesQuickzap.py b/lib/python/Screens/SubservicesQuickzap.py
index 2242c13eed20bbb5860c38261f95ff0f65ec143b..c098886887c7834ffca2218637fe3f06740a7dd4 100644 (file)
--- a/lib/python/Screens/SubservicesQuickzap.py
+++ b/lib/python/Screens/SubservicesQuickzap.py
@@ -74,6 +74,8 @@ class SubservicesQuickzap(InfoBarShowHide, InfoBarMenu, InfoBarServiceName, Info
 
        def getSubserviceIndex(self, service):
                self.updateSubservices()
+               if self.n is None:
+                       return -1
                for x in range(self.n):
                        if service == self.subservices.getSubservice(x):
                                return x
@@ -83,15 +85,16 @@ class SubservicesQuickzap(InfoBarShowHide, InfoBarMenu, InfoBarServiceName, Info
                self.updateSubservices()
                if number == 0:
                        self.playSubservice(self.lastservice)
-               elif number <= self.n - 1:
+               elif self.n is not None and number <= self.n - 1:
                        self.playSubservice(number)
        
        def showSelection(self):
                self.updateSubservices()
                tlist = []
-               for x in range(self.n):
-                       i = self.subservices.getSubservice(x)
-                       tlist.append((i.getName(), x))
+               if self.n is not None:
+                       for x in range(self.n):
+                               i = self.subservices.getSubservice(x)
+                               tlist.append((i.getName(), x))
 
                keys = [ "", "1", "2", "3", "4", "5", "6", "7", "8", "9" ] + [""] * self.n
                self.session.openWithCallback(self.subserviceSelected, ChoiceBox, title=_("Please select a subservice..."), list = tlist, selection = self.currentlyPlayingSubservice, keys = keys)