camd35: Fix wrong assumption.

We can have client without attached reader if we are in this camd35
code.

The bug was found by gorgone's static analysis.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8955 4b0bc96b-bc66-0410-9d44-ebda105a78c1
stat: Remove useless check.

rdr variable can't be null when the function is called.

The bug was found by gorgone's static analysis.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8956 4b0bc96b-bc66-0410-9d44-ebda105a78c1
config-reader: Prevent possible NULL pointer dereference.

I don't think NULL dereference is quite possible here but let's
make the clang analyser happy.

The bug was found by gorgone's static analysis.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8957 4b0bc96b-bc66-0410-9d44-ebda105a78c1